608689949 has 4 divisors (see below), whose sum is σ = 695645664. Its totient is φ = 521734236.

The previous prime is 608689943. The next prime is 608689951. The reversal of 608689949 is 949986806.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 608689949 - 2⁸ = 608689693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (608689943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43477847 + ... + 43477860.

It is an arithmetic number, because the mean of its divisors is an integer number (173911416).

Almost surely, 2^608689949 is an apocalyptic number.

It is an amenable number.

608689949 is a deficient number, since it is larger than the sum of its proper divisors (86955715).

608689949 is an equidigital number, since it uses as much as digits as its factorization.

608689949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86955714.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The square root of 608689949 is about 24671.6426084685. The cubic root of 608689949 is about 847.4850455212.

The spelling of 608689949 in words is "six hundred eight million, six hundred eighty-nine thousand, nine hundred forty-nine".