641020704 has 24 divisors (see below), whose sum is σ = 1682679600. Its totient is φ = 213673536.

The previous prime is 641020643. The next prime is 641020711. The reversal of 641020704 is 407020146.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3338554 + ... + 3338745.

It is an arithmetic number, because the mean of its divisors is an integer number (70111650).

Almost surely, 2^641020704 is an apocalyptic number.

It is an amenable number.

641020704 is an abundant number, since it is smaller than the sum of its proper divisors (1041658896).

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

641020704 is a wasteful number, since it uses less digits than its factorization.

641020704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6677312 (or 6677304 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 641020704 is about 25318.3866784596. The cubic root of 641020704 is about 862.2317660324.

The spelling of 641020704 in words is "six hundred forty-one million, twenty thousand, seven hundred four".