74275973 has 4 divisors (see below), whose sum is σ = 74594988. Its totient is φ = 73956960.

The previous prime is 74275963. The next prime is 74275987. The reversal of 74275973 is 37957247.

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 9746884 + 64529089 = 3122^2 + 8033^2 .

It is a cyclic number.

It is not a de Polignac number, because 74275973 - 2²⁴ = 57498757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74275963) 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, 159158 + ... + 159623.

It is an arithmetic number, because the mean of its divisors is an integer number (18648747).

Almost surely, 2^74275973 is an apocalyptic number.

It is an amenable number.

74275973 is a deficient number, since it is larger than the sum of its proper divisors (319015).

74275973 is a wasteful number, since it uses less digits than its factorization.

74275973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319014.

The product of its digits is 370440, while the sum is 44.

The square root of 74275973 is about 8618.3509443512. The cubic root of 74275973 is about 420.3549022133.

The spelling of 74275973 in words is "seventy-four million, two hundred seventy-five thousand, nine hundred seventy-three".