72684896 has 12 divisors (see below), whose sum is σ = 143098452. Its totient is φ = 36342432.

The previous prime is 72684893. The next prime is 72684917. The reversal of 72684896 is 69848627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72684893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135670 + ... + 1135733.

It is an arithmetic number, because the mean of its divisors is an integer number (11924871).

Almost surely, 2^72684896 is an apocalyptic number.

It is an amenable number.

72684896 is a deficient number, since it is larger than the sum of its proper divisors (70413556).

72684896 is a wasteful number, since it uses less digits than its factorization.

72684896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271413 (or 2271405 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 72684896 is about 8525.5437363256. The cubic root of 72684896 is about 417.3317160354.

The spelling of 72684896 in words is "seventy-two million, six hundred eighty-four thousand, eight hundred ninety-six".