634516797 has 4 divisors (see below), whose sum is σ = 846022400. Its totient is φ = 423011196.

The previous prime is 634516793. The next prime is 634516807. The reversal of 634516797 is 797615436.

It is a happy number.

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.

It is not a de Polignac number, because 634516797 - 2² = 634516793 is a prime.

It is a super-2 number, since 2×634516797² = 805223131350278418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634516793) 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, 105752797 + ... + 105752802.

It is an arithmetic number, because the mean of its divisors is an integer number (211505600).

Almost surely, 2^634516797 is an apocalyptic number.

It is an amenable number.

634516797 is a deficient number, since it is larger than the sum of its proper divisors (211505603).

634516797 is a wasteful number, since it uses less digits than its factorization.

634516797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211505602.

The product of its digits is 952560, while the sum is 48.

The square root of 634516797 is about 25189.6168490114. The cubic root of 634516797 is about 859.3057300102.

The spelling of 634516797 in words is "six hundred thirty-four million, five hundred sixteen thousand, seven hundred ninety-seven".