73887121 has 16 divisors (see below), whose sum is σ = 92510208. Its totient is φ = 57330000.

The previous prime is 73887101. The next prime is 73887127. The reversal of 73887121 is 12178837.

It is not a de Polignac number, because 73887121 - 2⁷ = 73886993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73887127) 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, 17416 + ... + 21238.

It is an arithmetic number, because the mean of its divisors is an integer number (5781888).

Almost surely, 2^73887121 is an apocalyptic number.

It is an amenable number.

73887121 is a deficient number, since it is larger than the sum of its proper divisors (18623087).

73887121 is a wasteful number, since it uses less digits than its factorization.

73887121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092.

The product of its digits is 18816, while the sum is 37.

The square root of 73887121 is about 8595.7618045174. The cubic root of 73887121 is about 419.6200664673.

The spelling of 73887121 in words is "seventy-three million, eight hundred eighty-seven thousand, one hundred twenty-one".