72256787 has 8 divisors (see below), whose sum is σ = 73783920. Its totient is φ = 70744320.

The previous prime is 72256763. The next prime is 72256837. The reversal of 72256787 is 78765227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72256787 - 2¹⁴ = 72240403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72256747) 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, 6587 + ... + 13707.

It is an arithmetic number, because the mean of its divisors is an integer number (9222990).

Almost surely, 2^72256787 is an apocalyptic number.

72256787 is a deficient number, since it is larger than the sum of its proper divisors (1527133).

72256787 is a wasteful number, since it uses less digits than its factorization.

72256787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333.

The product of its digits is 329280, while the sum is 44.

The square root of 72256787 is about 8500.3992259187. The cubic root of 72256787 is about 416.5107504814.

The spelling of 72256787 in words is "seventy-two million, two hundred fifty-six thousand, seven hundred eighty-seven".