608991345 has 32 divisors (see below), whose sum is σ = 1085130240. Its totient is φ = 324051840.

The previous prime is 608991337. The next prime is 608991347. The reversal of 608991345 is 543199806.

It is a happy number.

608991345 is a `hidden beast` number, since 608 + 9 + 9 + 1 + 34 + 5 = 666.

It is not a de Polignac number, because 608991345 - 2³ = 608991337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 608991345.

It is not an unprimeable number, because it can be changed into a prime (608991347) 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 31 ways as a sum of consecutive naturals, for example, 56760 + ... + 66630.

It is an arithmetic number, because the mean of its divisors is an integer number (33910320).

Almost surely, 2^608991345 is an apocalyptic number.

It is an amenable number.

608991345 is a deficient number, since it is larger than the sum of its proper divisors (476138895).

608991345 is a wasteful number, since it uses less digits than its factorization.

608991345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10342 (or 10336 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 608991345 is about 24677.7499987337. The cubic root of 608991345 is about 847.6249013191.

The spelling of 608991345 in words is "six hundred eight million, nine hundred ninety-one thousand, three hundred forty-five".