72574888 has 8 divisors (see below), whose sum is σ = 136077930. Its totient is φ = 36287440.

The previous prime is 72574883. The next prime is 72574891. The reversal of 72574888 is 88847527.

It can be written as a sum of positive squares in only one way, i.e., 59629284 + 12945604 = 7722^2 + 3598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×72574888² = 10534228736425088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72574883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4535923 + ... + 4535938.

Almost surely, 2^72574888 is an apocalyptic number.

It is an amenable number.

72574888 is a deficient number, since it is larger than the sum of its proper divisors (63503042).

72574888 is a wasteful number, since it uses less digits than its factorization.

72574888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9071867 (or 9071863 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 49.

The square root of 72574888 is about 8519.0896227238. The cubic root of 72574888 is about 417.1210670064.

The spelling of 72574888 in words is "seventy-two million, five hundred seventy-four thousand, eight hundred eighty-eight".