72710651 has 4 divisors (see below), whose sum is σ = 78303792. Its totient is φ = 67117512.

The previous prime is 72710639. The next prime is 72710653. The reversal of 72710651 is 15601727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15601727 = 883 ⋅17669.

It is a cyclic number.

It is not a de Polignac number, because 72710651 - 2¹⁴ = 72694267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72710653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2796551 + ... + 2796576.

It is an arithmetic number, because the mean of its divisors is an integer number (19575948).

Almost surely, 2^72710651 is an apocalyptic number.

72710651 is a deficient number, since it is larger than the sum of its proper divisors (5593141).

72710651 is a wasteful number, since it uses less digits than its factorization.

72710651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593140.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 72710651 is about 8527.0540633914. The cubic root of 72710651 is about 417.3810023368.

The spelling of 72710651 in words is "seventy-two million, seven hundred ten thousand, six hundred fifty-one".