634221796 has 24 divisors (see below), whose sum is σ = 1210401920. Its totient is φ = 289010592.

The previous prime is 634221787. The next prime is 634221811. The reversal of 634221796 is 697122436.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73086 + ... + 81301.

Almost surely, 2^634221796 is an apocalyptic number.

It is an amenable number.

634221796 is a deficient number, since it is larger than the sum of its proper divisors (576180124).

634221796 is a wasteful number, since it uses less digits than its factorization.

634221796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154483 (or 154481 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 634221796 is about 25183.7605611235. The cubic root of 634221796 is about 859.1725392388.

The spelling of 634221796 in words is "six hundred thirty-four million, two hundred twenty-one thousand, seven hundred ninety-six".