72716070 has 64 divisors (see below), whose sum is σ = 202300416. Its totient is φ = 16383360.

The previous prime is 72716069. The next prime is 72716071. The reversal of 72716070 is 7061727.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72716069) and next prime (72716071).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72716071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12472 + ... + 17348.

It is an arithmetic number, because the mean of its divisors is an integer number (3160944).

Almost surely, 2^72716070 is an apocalyptic number.

72716070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 72716070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101150208).

72716070 is an abundant number, since it is smaller than the sum of its proper divisors (129584346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72716070 is a wasteful number, since it uses less digits than its factorization.

72716070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 72716070 is about 8527.3718108219. The cubic root of 72716070 is about 417.3913709758.

Adding to 72716070 its reverse (7061727), we get a palindrome (79777797).

The spelling of 72716070 in words is "seventy-two million, seven hundred sixteen thousand, seventy".