72636296 has 8 divisors (see below), whose sum is σ = 136193070. Its totient is φ = 36318144.

The previous prime is 72636269. The next prime is 72636301. The reversal of 72636296 is 69263627.

It can be written as a sum of positive squares in only one way, i.e., 72012196 + 624100 = 8486^2 + 790^2 .

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

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, 4539761 + ... + 4539776.

Almost surely, 2^72636296 is an apocalyptic number.

It is an amenable number.

72636296 is a deficient number, since it is larger than the sum of its proper divisors (63556774).

72636296 is a wasteful number, since it uses less digits than its factorization.

72636296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9079543 (or 9079539 counting only the distinct ones).

The product of its digits is 163296, while the sum is 41.

The square root of 72636296 is about 8522.6930016281. The cubic root of 72636296 is about 417.2386804590.

The spelling of 72636296 in words is "seventy-two million, six hundred thirty-six thousand, two hundred ninety-six".