668895348 has 24 divisors (see below), whose sum is σ = 1702643040. Its totient is φ = 202695520.

The previous prime is 668895341. The next prime is 668895349. The reversal of 668895348 is 843598866.

It is a super-2 number, since 2×668895348² = 894841973152082208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668895341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2533563 + ... + 2533826.

It is an arithmetic number, because the mean of its divisors is an integer number (70943460).

Almost surely, 2^668895348 is an apocalyptic number.

It is an amenable number.

668895348 is an abundant number, since it is smaller than the sum of its proper divisors (1033747692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668895348 is a wasteful number, since it uses less digits than its factorization.

668895348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067407 (or 5067405 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 57.

The square root of 668895348 is about 25863.0111935946. The cubic root of 668895348 is about 874.5528482109.

The spelling of 668895348 in words is "six hundred sixty-eight million, eight hundred ninety-five thousand, three hundred forty-eight".