72587769 has 8 divisors (see below), whose sum is σ = 98109792. Its totient is φ = 47728800.

The previous prime is 72587731. The next prime is 72587797. The reversal of 72587769 is 96778527.

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

It is not a de Polignac number, because 72587769 - 2⁹ = 72587257 is a prime.

It is a super-2 number, since 2×72587769² = 10537968416794722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72587869) 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, 165507 + ... + 165944.

It is an arithmetic number, because the mean of its divisors is an integer number (12263724).

Almost surely, 2^72587769 is an apocalyptic number.

It is an amenable number.

72587769 is a deficient number, since it is larger than the sum of its proper divisors (25522023).

72587769 is a wasteful number, since it uses less digits than its factorization.

72587769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331527.

The product of its digits is 1481760, while the sum is 51.

The square root of 72587769 is about 8519.8455971925. The cubic root of 72587769 is about 417.1457432123.

The spelling of 72587769 in words is "seventy-two million, five hundred eighty-seven thousand, seven hundred sixty-nine".