73640633 has 16 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 64963200.

The previous prime is 73640627. The next prime is 73640663. The reversal of 73640633 is 33604637.

It is a cyclic number.

It is not a de Polignac number, because 73640633 - 2¹⁴ = 73624249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73640633.

It is not an unprimeable number, because it can be changed into a prime (73640663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121016 + ... + 121622.

It is an arithmetic number, because the mean of its divisors is an integer number (5171040).

Almost surely, 2^73640633 is an apocalyptic number.

It is an amenable number.

73640633 is a deficient number, since it is larger than the sum of its proper divisors (9096007).

73640633 is a wasteful number, since it uses less digits than its factorization.

73640633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 27216, while the sum is 32.

The square root of 73640633 is about 8581.4120632912. The cubic root of 73640633 is about 419.1529280402.

The spelling of 73640633 in words is "seventy-three million, six hundred forty thousand, six hundred thirty-three".