74117207 has 2 divisors, whose sum is σ = 74117208. Its totient is φ = 74117206.

The previous prime is 74117191. The next prime is 74117213. The reversal of 74117207 is 70271147.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74117207 - 2⁴ = 74117191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74117207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74117227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37058603 + 37058604.

It is an arithmetic number, because the mean of its divisors is an integer number (37058604).

Almost surely, 2^74117207 is an apocalyptic number.

74117207 is a deficient number, since it is larger than the sum of its proper divisors (1).

74117207 is an equidigital number, since it uses as much as digits as its factorization.

74117207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 74117207 is about 8609.1350901237. The cubic root of 74117207 is about 420.0551836033.

The spelling of 74117207 in words is "seventy-four million, one hundred seventeen thousand, two hundred seven".