74715973 has 2 divisors, whose sum is σ = 74715974. Its totient is φ = 74715972.

The previous prime is 74715881. The next prime is 74715989. The reversal of 74715973 is 37951747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59490369 + 15225604 = 7713^2 + 3902^2 .

It is an emirp because it is prime and its reverse (37951747) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74715973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74715073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37357986 + 37357987.

It is an arithmetic number, because the mean of its divisors is an integer number (37357987).

Almost surely, 2^74715973 is an apocalyptic number.

It is an amenable number.

74715973 is a deficient number, since it is larger than the sum of its proper divisors (1).

74715973 is an equidigital number, since it uses as much as digits as its factorization.

74715973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 43.

The square root of 74715973 is about 8643.8401766807. The cubic root of 74715973 is about 421.1833088926.

The spelling of 74715973 in words is "seventy-four million, seven hundred fifteen thousand, nine hundred seventy-three".