74953217 has 2 divisors, whose sum is σ = 74953218. Its totient is φ = 74953216.

The previous prime is 74953147. The next prime is 74953243. The reversal of 74953217 is 71235947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67749361 + 7203856 = 8231^2 + 2684^2 .

It is a cyclic number.

It is not a de Polignac number, because 74953217 - 2²⁰ = 73904641 is a prime.

It is not a weakly prime, because it can be changed into another prime (74953247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37476608 + 37476609.

It is an arithmetic number, because the mean of its divisors is an integer number (37476609).

Almost surely, 2^74953217 is an apocalyptic number.

It is an amenable number.

74953217 is a deficient number, since it is larger than the sum of its proper divisors (1).

74953217 is an equidigital number, since it uses as much as digits as its factorization.

74953217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 74953217 is about 8657.5525987429. The cubic root of 74953217 is about 421.6286292785.

The spelling of 74953217 in words is "seventy-four million, nine hundred fifty-three thousand, two hundred seventeen".