74064457 has 2 divisors, whose sum is σ = 74064458. Its totient is φ = 74064456.

The previous prime is 74064449. The next prime is 74064481. The reversal of 74064457 is 75446047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38887696 + 35176761 = 6236^2 + 5931^2 .

It is an emirp because it is prime and its reverse (75446047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74064457 - 2³ = 74064449 is a prime.

It is not a weakly prime, because it can be changed into another prime (74064407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37032228 + 37032229.

It is an arithmetic number, because the mean of its divisors is an integer number (37032229).

Almost surely, 2^74064457 is an apocalyptic number.

It is an amenable number.

74064457 is a deficient number, since it is larger than the sum of its proper divisors (1).

74064457 is an equidigital number, since it uses as much as digits as its factorization.

74064457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 74064457 is about 8606.0709385875. The cubic root of 74064457 is about 419.9555073806.

The spelling of 74064457 in words is "seventy-four million, sixty-four thousand, four hundred fifty-seven".