72704895 has 32 divisors (see below), whose sum is σ = 118879488. Its totient is φ = 37936128.

The previous prime is 72704893. The next prime is 72704917. The reversal of 72704895 is 59840727.

It is not a de Polignac number, because 72704895 - 2¹ = 72704893 is a prime.

It is a super-2 number, since 2×72704895² = 10572003513922050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72704893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155452 + ... + 155918.

It is an arithmetic number, because the mean of its divisors is an integer number (3714984).

Almost surely, 2^72704895 is an apocalyptic number.

72704895 is a deficient number, since it is larger than the sum of its proper divisors (46174593).

72704895 is a wasteful number, since it uses less digits than its factorization.

72704895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 72704895 is about 8526.7165427262. The cubic root of 72704895 is about 417.3699883226.

The spelling of 72704895 in words is "seventy-two million, seven hundred four thousand, eight hundred ninety-five".