634172095 has 4 divisors (see below), whose sum is σ = 761006520. Its totient is φ = 507337672.

The previous prime is 634172093. The next prime is 634172113. The reversal of 634172095 is 590271436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 634172095 - 2¹ = 634172093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634172093) 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, 63417205 + ... + 63417214.

It is an arithmetic number, because the mean of its divisors is an integer number (190251630).

Almost surely, 2^634172095 is an apocalyptic number.

634172095 is a deficient number, since it is larger than the sum of its proper divisors (126834425).

634172095 is a wasteful number, since it uses less digits than its factorization.

634172095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126834424.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 634172095 is about 25182.7737749439. The cubic root of 634172095 is about 859.1500955394.

The spelling of 634172095 in words is "six hundred thirty-four million, one hundred seventy-two thousand, ninety-five".