74007887 has 4 divisors (see below), whose sum is σ = 74451216. Its totient is φ = 73564560.

The previous prime is 74007883. The next prime is 74007931. The reversal of 74007887 is 78870047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78870047 = 1223 ⋅64489.

It is a cyclic number.

It is not a de Polignac number, because 74007887 - 2² = 74007883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74007883) 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 3 ways as a sum of consecutive naturals, for example, 221414 + ... + 221747.

It is an arithmetic number, because the mean of its divisors is an integer number (18612804).

Almost surely, 2^74007887 is an apocalyptic number.

74007887 is a deficient number, since it is larger than the sum of its proper divisors (443329).

74007887 is a wasteful number, since it uses less digits than its factorization.

74007887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443328.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 74007887 is about 8602.7836773919. The cubic root of 74007887 is about 419.8485602922.

The spelling of 74007887 in words is "seventy-four million, seven thousand, eight hundred eighty-seven".