608561690 has 32 divisors (see below), whose sum is σ = 1198903680. Its totient is φ = 220571200.

The previous prime is 608561689. The next prime is 608561693. The reversal of 608561690 is 96165806.

It is a super-2 number, since 2×608561690² = 740694661071312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (608561693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25316 + ... + 43104.

It is an arithmetic number, because the mean of its divisors is an integer number (37465740).

Almost surely, 2^608561690 is an apocalyptic number.

608561690 is a deficient number, since it is larger than the sum of its proper divisors (590341990).

608561690 is a wasteful number, since it uses less digits than its factorization.

608561690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18118.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 608561690 is about 24669.0431512858. The cubic root of 608561690 is about 847.4255159144.

The spelling of 608561690 in words is "six hundred eight million, five hundred sixty-one thousand, six hundred ninety".