73632313 has 4 divisors (see below), whose sum is σ = 73651828. Its totient is φ = 73612800.

The previous prime is 73632301. The next prime is 73632319. The reversal of 73632313 is 31323637.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39841344 + 33790969 = 6312^2 + 5813^2 .

It is a cyclic number.

It is not a de Polignac number, because 73632313 - 2²¹ = 71535161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73632319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088 + ... + 12313.

It is an arithmetic number, because the mean of its divisors is an integer number (18412957).

Almost surely, 2^73632313 is an apocalyptic number.

It is an amenable number.

73632313 is a deficient number, since it is larger than the sum of its proper divisors (19515).

73632313 is a wasteful number, since it uses less digits than its factorization.

73632313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19514.

The product of its digits is 6804, while the sum is 28.

The square root of 73632313 is about 8580.9272808945. The cubic root of 73632313 is about 419.1371419922.

The spelling of 73632313 in words is "seventy-three million, six hundred thirty-two thousand, three hundred thirteen".