641970004 has 12 divisors (see below), whose sum is σ = 1209866644. Its totient is φ = 296293824.

The previous prime is 641969983. The next prime is 641970019. The reversal of 641970004 is 400079146.

641970004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46512400 + 595457604 = 6820^2 + 24402^2 .

It is a congruent number.

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, 6172737 + ... + 6172840.

Almost surely, 2^641970004 is an apocalyptic number.

It is an amenable number.

641970004 is a deficient number, since it is larger than the sum of its proper divisors (567896640).

641970004 is a wasteful number, since it uses less digits than its factorization.

641970004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345594 (or 12345592 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 641970004 is about 25337.1269878808. The cubic root of 641970004 is about 862.6571880144.

The spelling of 641970004 in words is "six hundred forty-one million, nine hundred seventy thousand, four".