869495478 has 8 divisors (see below), whose sum is σ = 1738990968. Its totient is φ = 289831824.

The previous prime is 869495477. The next prime is 869495479. The reversal of 869495478 is 874594968.

It is an interprime number because it is at equal distance from previous prime (869495477) and next prime (869495479).

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

869495478 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869495477) 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, 72457951 + ... + 72457962.

It is an arithmetic number, because the mean of its divisors is an integer number (217373871).

Almost surely, 2^869495478 is an apocalyptic number.

869495478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869495478 is a wasteful number, since it uses less digits than its factorization.

869495478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144915918.

The product of its digits is 17418240, while the sum is 60.

The square root of 869495478 is about 29487.2087183579. The cubic root of 869495478 is about 954.4556999970.

The spelling of 869495478 in words is "eight hundred sixty-nine million, four hundred ninety-five thousand, four hundred seventy-eight".