879554647 has 4 divisors (see below), whose sum is σ = 879666480. Its totient is φ = 879442816.

The previous prime is 879554617. The next prime is 879554771. The reversal of 879554647 is 746455978.

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 879554647 - 2¹⁵ = 879521879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879554617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43147 + ... + 60172.

It is an arithmetic number, because the mean of its divisors is an integer number (219916620).

Almost surely, 2^879554647 is an apocalyptic number.

879554647 is a deficient number, since it is larger than the sum of its proper divisors (111833).

879554647 is a wasteful number, since it uses less digits than its factorization.

879554647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111832.

The product of its digits is 8467200, while the sum is 55.

The square root of 879554647 is about 29657.2865751403. The cubic root of 879554647 is about 958.1222870731.

The spelling of 879554647 in words is "eight hundred seventy-nine million, five hundred fifty-four thousand, six hundred forty-seven".