72835570 has 16 divisors (see below), whose sum is σ = 131301720. Its totient is φ = 29090304.

The previous prime is 72835541. The next prime is 72835577. The reversal of 72835570 is 7553827.

It can be written as a sum of positive squares in 4 ways, for example, as 34234201 + 38601369 = 5851^2 + 6213^2 .

It is not an unprimeable number, because it can be changed into a prime (72835577) 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, 1954 + ... + 12226.

Almost surely, 2^72835570 is an apocalyptic number.

72835570 is a deficient number, since it is larger than the sum of its proper divisors (58466150).

72835570 is a wasteful number, since it uses less digits than its factorization.

72835570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10989.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 72835570 is about 8534.3757826803. The cubic root of 72835570 is about 417.6198897924.

The spelling of 72835570 in words is "seventy-two million, eight hundred thirty-five thousand, five hundred seventy".