609640748 has 12 divisors (see below), whose sum is σ = 1067449320. Its totient is φ = 304655232.

The previous prime is 609640729. The next prime is 609640753. The reversal of 609640748 is 847046906.

It is a junction number, because it is equal to n+sod(n) for n = 609640699 and 609640708.

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, 32786 + ... + 47897.

It is an arithmetic number, because the mean of its divisors is an integer number (88954110).

Almost surely, 2^609640748 is an apocalyptic number.

It is an amenable number.

609640748 is a deficient number, since it is larger than the sum of its proper divisors (457808572).

609640748 is a wasteful number, since it uses less digits than its factorization.

609640748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82576 (or 82574 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 609640748 is about 24690.9041551742. The cubic root of 609640748 is about 847.9260849156.

The spelling of 609640748 in words is "six hundred nine million, six hundred forty thousand, seven hundred forty-eight".