74418987 has 8 divisors (see below), whose sum is σ = 100136080. Its totient is φ = 49157280.

The previous prime is 74418973. The next prime is 74418989. The reversal of 74418987 is 78981447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74418987 - 2⁶ = 74418923 is a prime.

It is a super-2 number, since 2×74418987² = 11076371252212338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74418989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113464 + ... + 114117.

It is an arithmetic number, because the mean of its divisors is an integer number (12517010).

Almost surely, 2^74418987 is an apocalyptic number.

74418987 is a deficient number, since it is larger than the sum of its proper divisors (25717093).

74418987 is a wasteful number, since it uses less digits than its factorization.

74418987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227693.

The product of its digits is 451584, while the sum is 48.

The square root of 74418987 is about 8626.6440172294. The cubic root of 74418987 is about 420.6245187577.

The spelling of 74418987 in words is "seventy-four million, four hundred eighteen thousand, nine hundred eighty-seven".