643053596 has 12 divisors (see below), whose sum is σ = 1174271952. Its totient is φ = 307547328.

The previous prime is 643053581. The next prime is 643053623. The reversal of 643053596 is 695350346.

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, 3494765 + ... + 3494948.

It is an arithmetic number, because the mean of its divisors is an integer number (97855996).

Almost surely, 2^643053596 is an apocalyptic number.

It is an amenable number.

643053596 is a deficient number, since it is larger than the sum of its proper divisors (531218356).

643053596 is a wasteful number, since it uses less digits than its factorization.

643053596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989740 (or 6989738 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 643053596 is about 25358.5014541475. The cubic root of 643053596 is about 863.1422797255.

The spelling of 643053596 in words is "six hundred forty-three million, fifty-three thousand, five hundred ninety-six".