74477497 has 2 divisors, whose sum is σ = 74477498. Its totient is φ = 74477496.

The previous prime is 74477489. The next prime is 74477537. The reversal of 74477497 is 79477447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65351056 + 9126441 = 8084^2 + 3021^2 .

It is a cyclic number.

It is not a de Polignac number, because 74477497 - 2³ = 74477489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74477497.

It is not a weakly prime, because it can be changed into another prime (74477437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37238748 + 37238749.

It is an arithmetic number, because the mean of its divisors is an integer number (37238749).

Almost surely, 2^74477497 is an apocalyptic number.

It is an amenable number.

74477497 is a deficient number, since it is larger than the sum of its proper divisors (1).

74477497 is an equidigital number, since it uses as much as digits as its factorization.

74477497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382976, while the sum is 49.

The square root of 74477497 is about 8630.0345885749. The cubic root of 74477497 is about 420.7347249231.

The spelling of 74477497 in words is "seventy-four million, four hundred seventy-seven thousand, four hundred ninety-seven".