74873873 has 4 divisors (see below), whose sum is σ = 74937828. Its totient is φ = 74809920.

The previous prime is 74873863. The next prime is 74873917. The reversal of 74873873 is 37837847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21977344 + 52896529 = 4688^2 + 7273^2 .

It is a cyclic number.

It is not a de Polignac number, because 74873873 - 2⁴ = 74873857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74873863) 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 3 ways as a sum of consecutive naturals, for example, 30188 + ... + 32573.

It is an arithmetic number, because the mean of its divisors is an integer number (18734457).

Almost surely, 2^74873873 is an apocalyptic number.

It is an amenable number.

74873873 is a deficient number, since it is larger than the sum of its proper divisors (63955).

74873873 is a wasteful number, since it uses less digits than its factorization.

74873873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63954.

The product of its digits is 790272, while the sum is 47.

The square root of 74873873 is about 8652.9690280273. The cubic root of 74873873 is about 421.4798008282.

The spelling of 74873873 in words is "seventy-four million, eight hundred seventy-three thousand, eight hundred seventy-three".