74430987 has 8 divisors (see below), whose sum is σ = 99380736. Its totient is φ = 49550952.

The previous prime is 74430971. The next prime is 74430989. The reversal of 74430987 is 78903447.

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

It is not a de Polignac number, because 74430987 - 2⁴ = 74430971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74430989) 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, 14883 + ... + 19244.

It is an arithmetic number, because the mean of its divisors is an integer number (12422592).

Almost surely, 2^74430987 is an apocalyptic number.

74430987 is a deficient number, since it is larger than the sum of its proper divisors (24949749).

74430987 is a wasteful number, since it uses less digits than its factorization.

74430987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34857.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 74430987 is about 8627.3395087941. The cubic root of 74430987 is about 420.6471259944.

The spelling of 74430987 in words is "seventy-four million, four hundred thirty thousand, nine hundred eighty-seven".