609717960 has 48 divisors (see below), whose sum is σ = 1981584540. Its totient is φ = 162591360.

The previous prime is 609717949. The next prime is 609717991. The reversal of 609717960 is 69717906.

It can be written as a sum of positive squares in 2 ways, for example, as 593701956 + 16016004 = 24366^2 + 4002^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 846471 + ... + 847190.

Almost surely, 2^609717960 is an apocalyptic number.

609717960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

609717960 is an abundant number, since it is smaller than the sum of its proper divisors (1371866580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609717960 is a wasteful number, since it uses less digits than its factorization.

609717960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693678 (or 1693671 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 609717960 is about 24692.4676774113. The cubic root of 609717960 is about 847.9618804806.

The spelling of 609717960 in words is "six hundred nine million, seven hundred seventeen thousand, nine hundred sixty".