74106987 has 8 divisors (see below), whose sum is σ = 98882880. Its totient is φ = 49367880.

The previous prime is 74106979. The next prime is 74107021. The reversal of 74106987 is 78960147.

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

It is not a de Polignac number, because 74106987 - 2³ = 74106979 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74106937) 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 7 ways as a sum of consecutive naturals, for example, 4089 + ... + 12842.

It is an arithmetic number, because the mean of its divisors is an integer number (12360360).

Almost surely, 2^74106987 is an apocalyptic number.

74106987 is a deficient number, since it is larger than the sum of its proper divisors (24775893).

74106987 is a wasteful number, since it uses less digits than its factorization.

74106987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18393.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 74106987 is about 8608.5415141010. The cubic root of 74106987 is about 420.0358756203.

The spelling of 74106987 in words is "seventy-four million, one hundred six thousand, nine hundred eighty-seven".