74691873 has 18 divisors (see below), whose sum is σ = 110606262. Its totient is φ = 48570240.

The previous prime is 74691871. The next prime is 74691901. The reversal of 74691873 is 37819647.

74691873 is a `hidden beast` number, since 7 + 469 + 187 + 3 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 3069504 + 71622369 = 1752^2 + 8463^2 .

It is not a de Polignac number, because 74691873 - 2¹ = 74691871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74691871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12661 + ... + 17597.

Almost surely, 2^74691873 is an apocalyptic number.

It is an amenable number.

74691873 is a deficient number, since it is larger than the sum of its proper divisors (35914389).

74691873 is a wasteful number, since it uses less digits than its factorization.

74691873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025 (or 4981 counting only the distinct ones).

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

The square root of 74691873 is about 8642.4460079309. The cubic root of 74691873 is about 421.1380191155.

The spelling of 74691873 in words is "seventy-four million, six hundred ninety-one thousand, eight hundred seventy-three".