74164957 has 2 divisors, whose sum is σ = 74164958. Its totient is φ = 74164956.

The previous prime is 74164933. The next prime is 74164997. The reversal of 74164957 is 75946147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53860921 + 20304036 = 7339^2 + 4506^2 .

It is an emirp because it is prime and its reverse (75946147) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74164957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74164997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37082478 + 37082479.

It is an arithmetic number, because the mean of its divisors is an integer number (37082479).

Almost surely, 2^74164957 is an apocalyptic number.

It is an amenable number.

74164957 is a deficient number, since it is larger than the sum of its proper divisors (1).

74164957 is an equidigital number, since it uses as much as digits as its factorization.

74164957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 74164957 is about 8611.9078606311. The cubic root of 74164957 is about 420.1453710689.

The spelling of 74164957 in words is "seventy-four million, one hundred sixty-four thousand, nine hundred fifty-seven".