72895594 has 4 divisors (see below), whose sum is σ = 109343394. Its totient is φ = 36447796.

The previous prime is 72895577. The next prime is 72895619. The reversal of 72895594 is 49559827.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70778569 + 2117025 = 8413^2 + 1455^2 .

It is a super-2 number, since 2×72895594² = 10627535249225672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 6.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18223897 + ... + 18223900.

Almost surely, 2^72895594 is an apocalyptic number.

72895594 is a deficient number, since it is larger than the sum of its proper divisors (36447800).

72895594 is a wasteful number, since it uses less digits than its factorization.

72895594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36447799.

The product of its digits is 907200, while the sum is 49.

The square root of 72895594 is about 8537.8916601231. The cubic root of 72895594 is about 417.7345788719.

The spelling of 72895594 in words is "seventy-two million, eight hundred ninety-five thousand, five hundred ninety-four".