74942773 has 2 divisors, whose sum is σ = 74942774. Its totient is φ = 74942772.

The previous prime is 74942767. The next prime is 74942807. The reversal of 74942773 is 37724947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43335889 + 31606884 = 6583^2 + 5622^2 .

It is a cyclic number.

It is not a de Polignac number, because 74942773 - 2⁵ = 74942741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74942713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37471386 + 37471387.

It is an arithmetic number, because the mean of its divisors is an integer number (37471387).

Almost surely, 2^74942773 is an apocalyptic number.

It is an amenable number.

74942773 is a deficient number, since it is larger than the sum of its proper divisors (1).

74942773 is an equidigital number, since it uses as much as digits as its factorization.

74942773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 43.

The square root of 74942773 is about 8656.9494049578. The cubic root of 74942773 is about 421.6090450893.

The spelling of 74942773 in words is "seventy-four million, nine hundred forty-two thousand, seven hundred seventy-three".