608280989 has 2 divisors, whose sum is σ = 608280990. Its totient is φ = 608280988.

The previous prime is 608280979. The next prime is 608281031. The reversal of 608280989 is 989082806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483780025 + 124500964 = 21995^2 + 11158^2 .

It is a cyclic number.

It is not a de Polignac number, because 608280989 - 2⁸ = 608280733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (608280919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304140494 + 304140495.

It is an arithmetic number, because the mean of its divisors is an integer number (304140495).

Almost surely, 2^608280989 is an apocalyptic number.

It is an amenable number.

608280989 is a deficient number, since it is larger than the sum of its proper divisors (1).

608280989 is an equidigital number, since it uses as much as digits as its factorization.

608280989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 608280989 is about 24663.3531580765. The cubic root of 608280989 is about 847.2952033121.

The spelling of 608280989 in words is "six hundred eight million, two hundred eighty thousand, nine hundred eighty-nine".