608689919 has 2 divisors, whose sum is σ = 608689920. Its totient is φ = 608689918.

The previous prime is 608689891. The next prime is 608689931. The reversal of 608689919 is 919986806.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 608689919 - 2¹⁶ = 608624383 is a prime.

It is a super-2 number, since 2×608689919² = 741006834984453122, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (608689969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304344959 + 304344960.

It is an arithmetic number, because the mean of its divisors is an integer number (304344960).

Almost surely, 2^608689919 is an apocalyptic number.

608689919 is a deficient number, since it is larger than the sum of its proper divisors (1).

608689919 is an equidigital number, since it uses as much as digits as its factorization.

608689919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The square root of 608689919 is about 24671.6420004831. The cubic root of 608689919 is about 847.4850315981.

The spelling of 608689919 in words is "six hundred eight million, six hundred eighty-nine thousand, nine hundred nineteen".