73913957 has 4 divisors (see below), whose sum is σ = 79599660. Its totient is φ = 68228256.

The previous prime is 73913929. The next prime is 73913963. The reversal of 73913957 is 75931937.

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 12432676 + 61481281 = 3526^2 + 7841^2 .

It is a cyclic number.

It is not a de Polignac number, because 73913957 - 2¹² = 73909861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73913057) 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, 2842832 + ... + 2842857.

It is an arithmetic number, because the mean of its divisors is an integer number (19899915).

Almost surely, 2^73913957 is an apocalyptic number.

It is an amenable number.

73913957 is a deficient number, since it is larger than the sum of its proper divisors (5685703).

73913957 is a wasteful number, since it uses less digits than its factorization.

73913957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685702.

The product of its digits is 178605, while the sum is 44.

The square root of 73913957 is about 8597.3226646439. The cubic root of 73913957 is about 419.6708626949.

The spelling of 73913957 in words is "seventy-three million, nine hundred thirteen thousand, nine hundred fifty-seven".