73901893 has 16 divisors (see below), whose sum is σ = 81204480. Its totient is φ = 66845376.

The previous prime is 73901881. The next prime is 73901897. The reversal of 73901893 is 39810937.

It is a de Polignac number, because none of the positive numbers 2^k-73901893 is a prime.

It is a super-2 number, since 2×73901893² = 10922979577966898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73901897) 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, 232971 + ... + 233287.

It is an arithmetic number, because the mean of its divisors is an integer number (5075280).

Almost surely, 2^73901893 is an apocalyptic number.

It is an amenable number.

73901893 is a deficient number, since it is larger than the sum of its proper divisors (7302587).

73901893 is a wasteful number, since it uses less digits than its factorization.

73901893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 73901893 is about 8596.6210222389. The cubic root of 73901893 is about 419.6480290066.

The spelling of 73901893 in words is "seventy-three million, nine hundred one thousand, eight hundred ninety-three".