74888117 has 2 divisors, whose sum is σ = 74888118. Its totient is φ = 74888116.

The previous prime is 74888089. The next prime is 74888119. The reversal of 74888117 is 71188847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60855601 + 14032516 = 7801^2 + 3746^2 .

It is a cyclic number.

It is not a de Polignac number, because 74888117 - 2⁸ = 74887861 is a prime.

Together with 74888119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74888119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37444058 + 37444059.

It is an arithmetic number, because the mean of its divisors is an integer number (37444059).

Almost surely, 2^74888117 is an apocalyptic number.

It is an amenable number.

74888117 is a deficient number, since it is larger than the sum of its proper divisors (1).

74888117 is an equidigital number, since it uses as much as digits as its factorization.

74888117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100352, while the sum is 44.

The square root of 74888117 is about 8653.7920589762. The cubic root of 74888117 is about 421.5065265621.

The spelling of 74888117 in words is "seventy-four million, eight hundred eighty-eight thousand, one hundred seventeen".