73890873 has 30 divisors (see below), whose sum is σ = 128408346. Its totient is φ = 42221088.

The previous prime is 73890863. The next prime is 73890877. The reversal of 73890873 is 37809837.

It can be written as a sum of positive squares in only one way, i.e., 73410624 + 480249 = 8568^2 + 693^2 .

It is not a de Polignac number, because 73890873 - 2⁶ = 73890809 is a prime.

It is a super-2 number, since 2×73890873² = 10919722225404258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73890877) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5340 + ... + 13277.

Almost surely, 2^73890873 is an apocalyptic number.

It is an amenable number.

73890873 is a deficient number, since it is larger than the sum of its proper divisors (54517473).

73890873 is a wasteful number, since it uses less digits than its factorization.

73890873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18643 (or 18627 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 73890873 is about 8595.9800488368. The cubic root of 73890873 is about 419.6271691388.

The spelling of 73890873 in words is "seventy-three million, eight hundred ninety thousand, eight hundred seventy-three".