74117457 has 8 divisors (see below), whose sum is σ = 109803680. Its totient is φ = 49411620.

The previous prime is 74117437. The next prime is 74117489. The reversal of 74117457 is 75471147.

It is not a de Polignac number, because 74117457 - 2¹⁰ = 74116433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74117437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372519 + ... + 1372572.

It is an arithmetic number, because the mean of its divisors is an integer number (13725460).

Almost surely, 2^74117457 is an apocalyptic number.

It is an amenable number.

74117457 is a deficient number, since it is larger than the sum of its proper divisors (35686223).

74117457 is a wasteful number, since it uses less digits than its factorization.

74117457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745100 (or 2745094 counting only the distinct ones).

The product of its digits is 27440, while the sum is 36.

The square root of 74117457 is about 8609.1496095724. The cubic root of 74117457 is about 420.0556558898.

The spelling of 74117457 in words is "seventy-four million, one hundred seventeen thousand, four hundred fifty-seven".