73647056 has 40 divisors (see below), whose sum is σ = 164781120. Its totient is φ = 31233024.

The previous prime is 73647047. The next prime is 73647061. The reversal of 73647056 is 65074637.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7475 + ... + 14253.

It is an arithmetic number, because the mean of its divisors is an integer number (4119528).

Almost surely, 2^73647056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73647056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82390560).

73647056 is an abundant number, since it is smaller than the sum of its proper divisors (91134064).

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

73647056 is a wasteful number, since it uses less digits than its factorization.

73647056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891 (or 6885 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 73647056 is about 8581.7862942397. The cubic root of 73647056 is about 419.1651139801.

The spelling of 73647056 in words is "seventy-three million, six hundred forty-seven thousand, fifty-six".