72472569 has 16 divisors (see below), whose sum is σ = 104419392. Its totient is φ = 44445888.

The previous prime is 72472549. The next prime is 72472573. The reversal of 72472569 is 96527427.

It is not a de Polignac number, because 72472569 - 2¹¹ = 72470521 is a prime.

It is a super-2 number, since 2×72472569² = 10504546514919522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72472569.

It is not an unprimeable number, because it can be changed into a prime (72472549) 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, 8947 + ... + 14999.

It is an arithmetic number, because the mean of its divisors is an integer number (6526212).

Almost surely, 2^72472569 is an apocalyptic number.

It is an amenable number.

72472569 is a deficient number, since it is larger than the sum of its proper divisors (31946823).

72472569 is a wasteful number, since it uses less digits than its factorization.

72472569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376.

The product of its digits is 211680, while the sum is 42.

The square root of 72472569 is about 8513.0822267848. The cubic root of 72472569 is about 416.9249501199.

The spelling of 72472569 in words is "seventy-two million, four hundred seventy-two thousand, five hundred sixty-nine".