634700953 has 4 divisors (see below), whose sum is σ = 634757760. Its totient is φ = 634644148.

The previous prime is 634700921. The next prime is 634700959. The reversal of 634700953 is 359007436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 634700953 - 2⁵ = 634700921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634700959) 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, 5473 + ... + 36046.

It is an arithmetic number, because the mean of its divisors is an integer number (158689440).

Almost surely, 2^634700953 is an apocalyptic number.

It is an amenable number.

634700953 is a deficient number, since it is larger than the sum of its proper divisors (56807).

634700953 is a wasteful number, since it uses less digits than its factorization.

634700953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56806.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 634700953 is about 25193.2719788439. The cubic root of 634700953 is about 859.3888541555.

The spelling of 634700953 in words is "six hundred thirty-four million, seven hundred thousand, nine hundred fifty-three".