634773172 has 12 divisors (see below), whose sum is σ = 1211839776. Its totient is φ = 288533240.

The previous prime is 634773133. The next prime is 634773173. The reversal of 634773172 is 271377436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634773173) 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, 7213288 + ... + 7213375.

It is an arithmetic number, because the mean of its divisors is an integer number (100986648).

Almost surely, 2^634773172 is an apocalyptic number.

It is an amenable number.

634773172 is a deficient number, since it is larger than the sum of its proper divisors (577066604).

634773172 is a wasteful number, since it uses less digits than its factorization.

634773172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14426678 (or 14426676 counting only the distinct ones).

The product of its digits is 148176, while the sum is 40.

The square root of 634773172 is about 25194.7052374105. The cubic root of 634773172 is about 859.4214479041.

The spelling of 634773172 in words is "six hundred thirty-four million, seven hundred seventy-three thousand, one hundred seventy-two".