74469857 has 12 divisors (see below), whose sum is σ = 94504176. Its totient is φ = 58028040.

The previous prime is 74469853. The next prime is 74469869. The reversal of 74469857 is 75896447.

It is not a de Polignac number, because 74469857 - 2² = 74469853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74469853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68543 + ... + 69620.

It is an arithmetic number, because the mean of its divisors is an integer number (7875348).

Almost surely, 2^74469857 is an apocalyptic number.

74469857 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

74469857 is a deficient number, since it is larger than the sum of its proper divisors (20034319).

74469857 is a wasteful number, since it uses less digits than its factorization.

74469857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138188 (or 138181 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 74469857 is about 8629.5919370501. The cubic root of 74469857 is about 420.7203379232.

The spelling of 74469857 in words is "seventy-four million, four hundred sixty-nine thousand, eight hundred fifty-seven".