609897730 has 16 divisors (see below), whose sum is σ = 1182263544. Its totient is φ = 225192960.

The previous prime is 609897727. The next prime is 609897749. The reversal of 609897730 is 37798906.

It can be written as a sum of positive squares in 4 ways, for example, as 541818729 + 68079001 = 23277^2 + 8251^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2345631 + ... + 2345890.

Almost surely, 2^609897730 is an apocalyptic number.

609897730 is a deficient number, since it is larger than the sum of its proper divisors (572365814).

609897730 is a wasteful number, since it uses less digits than its factorization.

609897730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691541.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 609897730 is about 24696.1075880391. The cubic root of 609897730 is about 848.0452103358.

The spelling of 609897730 in words is "six hundred nine million, eight hundred ninety-seven thousand, seven hundred thirty".