669413476 has 6 divisors (see below), whose sum is σ = 1171473590. Its totient is φ = 334706736.

The previous prime is 669413461. The next prime is 669413497. The reversal of 669413476 is 674314966.

It is a happy number.

669413476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 642622500 + 26790976 = 25350^2 + 5176^2 .

It is a super-2 number, since 2×669413476² = 896228803700805152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83676681 + ... + 83676688.

Almost surely, 2^669413476 is an apocalyptic number.

It is an amenable number.

669413476 is a deficient number, since it is larger than the sum of its proper divisors (502060114).

669413476 is a wasteful number, since it uses less digits than its factorization.

669413476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167353373 (or 167353371 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 669413476 is about 25873.0260309845. The cubic root of 669413476 is about 874.7786002020.

The spelling of 669413476 in words is "six hundred sixty-nine million, four hundred thirteen thousand, four hundred seventy-six".