608969999 has 24 divisors (see below), whose sum is σ = 690566400. Its totient is φ = 532481040.

The previous prime is 608969989. The next prime is 608970041. The reversal of 608969999 is 999969806.

It is not a de Polignac number, because 608969999 - 2⁸ = 608969743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (608969989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1606592 + ... + 1606970.

It is an arithmetic number, because the mean of its divisors is an integer number (28773600).

Almost surely, 2^608969999 is an apocalyptic number.

608969999 is a deficient number, since it is larger than the sum of its proper divisors (81596401).

608969999 is a wasteful number, since it uses less digits than its factorization.

608969999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 17006112, while the sum is 65.

The square root of 608969999 is about 24677.3175000850. The cubic root of 608969999 is about 847.6149977232.

The spelling of 608969999 in words is "six hundred eight million, nine hundred sixty-nine thousand, nine hundred ninety-nine".