634371101 has 24 divisors (see below), whose sum is σ = 796330584. Its totient is φ = 500895360.

The previous prime is 634371091. The next prime is 634371103. The reversal of 634371101 is 101173436.

It can be written as a sum of positive squares in 4 ways, for example, as 27931225 + 606439876 = 5285^2 + 24626^2 .

It is a de Polignac number, because none of the positive numbers 2^k-634371101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634371103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 522371 + ... + 523583.

It is an arithmetic number, because the mean of its divisors is an integer number (33180441).

Almost surely, 2^634371101 is an apocalyptic number.

It is an amenable number.

634371101 is a deficient number, since it is larger than the sum of its proper divisors (161959483).

634371101 is a wasteful number, since it uses less digits than its factorization.

634371101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 634371101 is about 25186.7246977450. The cubic root of 634371101 is about 859.2399545036.

The spelling of 634371101 in words is "six hundred thirty-four million, three hundred seventy-one thousand, one hundred one".