72726056 has 16 divisors (see below), whose sum is σ = 146850900. Its totient is φ = 33565824.

The previous prime is 72726013. The next prime is 72726103. The reversal of 72726056 is 65062727.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63520900 + 9205156 = 7970^2 + 3034^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349541 + ... + 349748.

Almost surely, 2^72726056 is an apocalyptic number.

It is an amenable number.

72726056 is an abundant number, since it is smaller than the sum of its proper divisors (74124844).

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

72726056 is a wasteful number, since it uses less digits than its factorization.

72726056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699308 (or 699304 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 72726056 is about 8527.9573169664. The cubic root of 72726056 is about 417.4104766996.

The spelling of 72726056 in words is "seventy-two million, seven hundred twenty-six thousand, fifty-six".