72711501 has 16 divisors (see below), whose sum is σ = 98017920. Its totient is φ = 47943360.

The previous prime is 72711493. The next prime is 72711539. The reversal of 72711501 is 10511727.

It is a happy number.

It is not a de Polignac number, because 72711501 - 2³ = 72711493 is a prime.

It is a super-3 number, since 3×72711501³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72711571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194751 + ... + 195123.

It is an arithmetic number, because the mean of its divisors is an integer number (6126120).

Almost surely, 2^72711501 is an apocalyptic number.

It is an amenable number.

72711501 is a deficient number, since it is larger than the sum of its proper divisors (25306419).

72711501 is a wasteful number, since it uses less digits than its factorization.

72711501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 72711501 is about 8527.1039046091. The cubic root of 72711501 is about 417.3826287490.

The spelling of 72711501 in words is "seventy-two million, seven hundred eleven thousand, five hundred one".