74998117 has 2 divisors, whose sum is σ = 74998118. Its totient is φ = 74998116.

The previous prime is 74998043. The next prime is 74998123. The reversal of 74998117 is 71189947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38019556 + 36978561 = 6166^2 + 6081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74998117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74998817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37499058 + 37499059.

It is an arithmetic number, because the mean of its divisors is an integer number (37499059).

Almost surely, 2^74998117 is an apocalyptic number.

It is an amenable number.

74998117 is a deficient number, since it is larger than the sum of its proper divisors (1).

74998117 is an equidigital number, since it uses as much as digits as its factorization.

74998117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 46.

The square root of 74998117 is about 8660.1453221063. The cubic root of 74998117 is about 421.7128033242.

The spelling of 74998117 in words is "seventy-four million, nine hundred ninety-eight thousand, one hundred seventeen".