634220793 has 16 divisors (see below), whose sum is σ = 940200640. Its totient is φ = 422537472.

The previous prime is 634220789. The next prime is 634220831. The reversal of 634220793 is 397022436.

It is a happy number.

It is not a de Polignac number, because 634220793 - 2² = 634220789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634220753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39705 + ... + 53337.

It is an arithmetic number, because the mean of its divisors is an integer number (58762540).

Almost surely, 2^634220793 is an apocalyptic number.

It is an amenable number.

634220793 is a deficient number, since it is larger than the sum of its proper divisors (305979847).

634220793 is a wasteful number, since it uses less digits than its factorization.

634220793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15365 (or 15359 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 634220793 is about 25183.7406474892. The cubic root of 634220793 is about 859.1720863212.

The spelling of 634220793 in words is "six hundred thirty-four million, two hundred twenty thousand, seven hundred ninety-three".