874776979 has 4 divisors (see below), whose sum is σ = 877061376. Its totient is φ = 872492584.

The previous prime is 874776949. The next prime is 874776989. The reversal of 874776979 is 979677478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 874776979 - 2²¹ = 872679827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 874776979.

It is not an unprimeable number, because it can be changed into a prime (874776919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141624 + ... + 1142389.

It is an arithmetic number, because the mean of its divisors is an integer number (219265344).

Almost surely, 2^874776979 is an apocalyptic number.

874776979 is a deficient number, since it is larger than the sum of its proper divisors (2284397).

874776979 is a wasteful number, since it uses less digits than its factorization.

874776979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284396.

The product of its digits is 37340352, while the sum is 64.

The square root of 874776979 is about 29576.6289323175. The cubic root of 874776979 is about 956.3843228002.

The spelling of 874776979 in words is "eight hundred seventy-four million, seven hundred seventy-six thousand, nine hundred seventy-nine".