73406656 has 28 divisors (see below), whose sum is σ = 150693120. Its totient is φ = 35436800.

The previous prime is 73406651. The next prime is 73406657. The reversal of 73406656 is 65660437.

It is not an unprimeable number, because it can be changed into a prime (73406651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17920 + ... + 21631.

Almost surely, 2^73406656 is an apocalyptic number.

It is an amenable number.

73406656 is an abundant number, since it is smaller than the sum of its proper divisors (77286464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73406656 is a wasteful number, since it uses less digits than its factorization.

73406656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39592 (or 39582 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 73406656 is about 8567.7684375805. The cubic root of 73406656 is about 418.7085348116.

The spelling of 73406656 in words is "seventy-three million, four hundred six thousand, six hundred fifty-six".