73900557 has 12 divisors (see below), whose sum is σ = 112363680. Its totient is φ = 46673928.

The previous prime is 73900549. The next prime is 73900571. The reversal of 73900557 is 75500937.

It is not a de Polignac number, because 73900557 - 2³ = 73900549 is a prime.

It is a super-2 number, since 2×73900557² = 10922584649820498, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73900537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215913 + ... + 216254.

It is an arithmetic number, because the mean of its divisors is an integer number (9363640).

Almost surely, 2^73900557 is an apocalyptic number.

It is an amenable number.

73900557 is a deficient number, since it is larger than the sum of its proper divisors (38463123).

73900557 is a wasteful number, since it uses less digits than its factorization.

73900557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432192 (or 432189 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The square root of 73900557 is about 8596.5433169385. The cubic root of 73900557 is about 419.6455001894.

The spelling of 73900557 in words is "seventy-three million, nine hundred thousand, five hundred fifty-seven".