74906487 has 12 divisors (see below), whose sum is σ = 108864184. Its totient is φ = 49630320.

The previous prime is 74906479. The next prime is 74906501. The reversal of 74906487 is 78460947.

It is not a de Polignac number, because 74906487 - 2³ = 74906479 is a prime.

It is a super-2 number, since 2×74906487² = 11221963589362338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74906087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24064 + ... + 26997.

Almost surely, 2^74906487 is an apocalyptic number.

74906487 is a deficient number, since it is larger than the sum of its proper divisors (33957697).

74906487 is a wasteful number, since it uses less digits than its factorization.

74906487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51230 (or 51227 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 74906487 is about 8654.8533783075. The cubic root of 74906487 is about 421.5409888247.

The spelling of 74906487 in words is "seventy-four million, nine hundred six thousand, four hundred eighty-seven".