879380945 has 4 divisors (see below), whose sum is σ = 1055257140. Its totient is φ = 703504752.

The previous prime is 879380939. The next prime is 879380959. The reversal of 879380945 is 549083978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 549083978 = 2 ⋅274541989.

It can be written as a sum of positive squares in 2 ways, for example, as 663526081 + 215854864 = 25759^2 + 14692^2 .

It is a cyclic number.

It is not a de Polignac number, because 879380945 - 2¹⁴ = 879364561 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87938090 + ... + 87938099.

It is an arithmetic number, because the mean of its divisors is an integer number (263814285).

Almost surely, 2^879380945 is an apocalyptic number.

It is an amenable number.

879380945 is a deficient number, since it is larger than the sum of its proper divisors (175876195).

879380945 is a wasteful number, since it uses less digits than its factorization.

879380945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175876194.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 879380945 is about 29654.3579428050. The cubic root of 879380945 is about 958.0592101833.

The spelling of 879380945 in words is "eight hundred seventy-nine million, three hundred eighty thousand, nine hundred forty-five".