635472878 has 8 divisors (see below), whose sum is σ = 960486120. Its totient is φ = 315310840.

The previous prime is 635472857. The next prime is 635472907. The reversal of 635472878 is 878274536.

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

It is a congruent 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, 1212473 + ... + 1212996.

It is an arithmetic number, because the mean of its divisors is an integer number (120060765).

Almost surely, 2^635472878 is an apocalyptic number.

635472878 is a deficient number, since it is larger than the sum of its proper divisors (325013242).

635472878 is a wasteful number, since it uses less digits than its factorization.

635472878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425602.

The product of its digits is 2257920, while the sum is 50.

The square root of 635472878 is about 25208.5873860476. The cubic root of 635472878 is about 859.7371100196.

The spelling of 635472878 in words is "six hundred thirty-five million, four hundred seventy-two thousand, eight hundred seventy-eight".