72071662 has 16 divisors (see below), whose sum is σ = 117022752. Its totient is φ = 33092640.

The previous prime is 72071647. The next prime is 72071663. The reversal of 72071662 is 26617027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72071663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914 + ... + 12157.

It is an arithmetic number, because the mean of its divisors is an integer number (7313922).

Almost surely, 2^72071662 is an apocalyptic number.

72071662 is a deficient number, since it is larger than the sum of its proper divisors (44951090).

72071662 is a wasteful number, since it uses less digits than its factorization.

72071662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 72071662 is about 8489.5030478821. The cubic root of 72071662 is about 416.1547401102.

Adding to 72071662 its reverse (26617027), we get a palindrome (98688689).

The spelling of 72071662 in words is "seventy-two million, seventy-one thousand, six hundred sixty-two".