74834387 has 16 divisors (see below), whose sum is σ = 81948672. Its totient is φ = 68127840.

The previous prime is 74834371. The next prime is 74834393. The reversal of 74834387 is 78343847.

It is not a de Polignac number, because 74834387 - 2⁴ = 74834371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74834087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39062 + ... + 40932.

It is an arithmetic number, because the mean of its divisors is an integer number (5121792).

Almost surely, 2^74834387 is an apocalyptic number.

74834387 is a deficient number, since it is larger than the sum of its proper divisors (7114285).

74834387 is a wasteful number, since it uses less digits than its factorization.

74834387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978.

The product of its digits is 451584, while the sum is 44.

The square root of 74834387 is about 8650.6870825386. The cubic root of 74834387 is about 421.4056963056.

The spelling of 74834387 in words is "seventy-four million, eight hundred thirty-four thousand, three hundred eighty-seven".