634287955 has 16 divisors (see below), whose sum is σ = 871087104. Its totient is φ = 434337120.

The previous prime is 634287851. The next prime is 634287967. The reversal of 634287955 is 559782436.

It is not a de Polignac number, because 634287955 - 2⁷ = 634287827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634287899 and 634287908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13810 + ... + 38200.

It is an arithmetic number, because the mean of its divisors is an integer number (54442944).

Almost surely, 2^634287955 is an apocalyptic number.

634287955 is a deficient number, since it is larger than the sum of its proper divisors (236799149).

634287955 is a wasteful number, since it uses less digits than its factorization.

634287955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25146.

The product of its digits is 1814400, while the sum is 49.

The square root of 634287955 is about 25185.0740519062. The cubic root of 634287955 is about 859.2024131304.

The spelling of 634287955 in words is "six hundred thirty-four million, two hundred eighty-seven thousand, nine hundred fifty-five".