634398846 has 32 divisors (see below), whose sum is σ = 1281335328. Its totient is φ = 209387520.

The previous prime is 634398839. The next prime is 634398859. The reversal of 634398846 is 648893436.

It is a happy number.

It is a super-2 number, since 2×634398846² = 804923791612263432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277966 + ... + 280238.

It is an arithmetic number, because the mean of its divisors is an integer number (40041729).

Almost surely, 2^634398846 is an apocalyptic number.

634398846 is an abundant number, since it is smaller than the sum of its proper divisors (646936482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634398846 is a wasteful number, since it uses less digits than its factorization.

634398846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716.

The product of its digits is 2985984, while the sum is 51.

The square root of 634398846 is about 25187.2754779075. The cubic root of 634398846 is about 859.2524809596.

The spelling of 634398846 in words is "six hundred thirty-four million, three hundred ninety-eight thousand, eight hundred forty-six".