647434612 has 24 divisors (see below), whose sum is σ = 1256965920. Its totient is φ = 289299360.

The previous prime is 647434583. The next prime is 647434643. The reversal of 647434612 is 216434746.

It is a congruent 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, 122103 + ... + 127294.

It is an arithmetic number, because the mean of its divisors is an integer number (52373580).

Almost surely, 2^647434612 is an apocalyptic number.

It is an amenable number.

647434612 is a deficient number, since it is larger than the sum of its proper divisors (609531308).

647434612 is a wasteful number, since it uses less digits than its factorization.

647434612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249471 (or 249469 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 647434612 is about 25444.7364301539. The cubic root of 647434612 is about 865.0979928410.

The spelling of 647434612 in words is "six hundred forty-seven million, four hundred thirty-four thousand, six hundred twelve".