669674896 has 40 divisors (see below), whose sum is σ = 1461120768. Its totient is φ = 294576000.

The previous prime is 669674879. The next prime is 669674899. The reversal of 669674896 is 698476966.

It is a super-2 number, since 2×669674896² = 896928932665221632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (669674899) 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, 55915 + ... + 66826.

Almost surely, 2^669674896 is an apocalyptic number.

It is an amenable number.

669674896 is an abundant number, since it is smaller than the sum of its proper divisors (791445872).

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

669674896 is a wasteful number, since it uses less digits than its factorization.

669674896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122791 (or 122785 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 61.

The square root of 669674896 is about 25878.0775174664. The cubic root of 669674896 is about 874.8924585111.

The spelling of 669674896 in words is "six hundred sixty-nine million, six hundred seventy-four thousand, eight hundred ninety-six".