609728683 has 4 divisors (see below), whose sum is σ = 630753840. Its totient is φ = 588703528.

The previous prime is 609728663. The next prime is 609728687. The reversal of 609728683 is 386827906.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 609728683 - 2¹³ = 609720491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609728687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10512535 + ... + 10512592.

It is an arithmetic number, because the mean of its divisors is an integer number (157688460).

Almost surely, 2^609728683 is an apocalyptic number.

609728683 is a deficient number, since it is larger than the sum of its proper divisors (21025157).

609728683 is a wasteful number, since it uses less digits than its factorization.

609728683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21025156.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 609728683 is about 24692.6848074485. The cubic root of 609728683 is about 847.9668514358.

The spelling of 609728683 in words is "six hundred nine million, seven hundred twenty-eight thousand, six hundred eighty-three".