634856793 has 8 divisors (see below), whose sum is σ = 846637728. Its totient is φ = 423156864.

The previous prime is 634856759. The next prime is 634856797. The reversal of 634856793 is 397658436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 634856793 - 2²² = 630662489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (634856797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 35657.

It is an arithmetic number, because the mean of its divisors is an integer number (105829716).

Almost surely, 2^634856793 is an apocalyptic number.

It is an amenable number.

634856793 is a deficient number, since it is larger than the sum of its proper divisors (211780935).

634856793 is a wasteful number, since it uses less digits than its factorization.

634856793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40503.

The product of its digits is 3265920, while the sum is 51.

The square root of 634856793 is about 25196.3646782626. The cubic root of 634856793 is about 859.4591844944.

The spelling of 634856793 in words is "six hundred thirty-four million, eight hundred fifty-six thousand, seven hundred ninety-three".