869386479 has 8 divisors (see below), whose sum is σ = 1248349872. Its totient is φ = 535007040.

The previous prime is 869386451. The next prime is 869386489. The reversal of 869386479 is 974683968.

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

It is not a de Polignac number, because 869386479 - 2²⁰ = 868337903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869386429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11145942 + ... + 11146019.

It is an arithmetic number, because the mean of its divisors is an integer number (156043734).

Almost surely, 2^869386479 is an apocalyptic number.

869386479 is a deficient number, since it is larger than the sum of its proper divisors (378963393).

869386479 is a wasteful number, since it uses less digits than its factorization.

869386479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22291977.

The product of its digits is 15676416, while the sum is 60.

The square root of 869386479 is about 29485.3604183500. The cubic root of 869386479 is about 954.4158151569.

The spelling of 869386479 in words is "eight hundred sixty-nine million, three hundred eighty-six thousand, four hundred seventy-nine".