669412846 has 8 divisors (see below), whose sum is σ = 1004481720. Its totient is φ = 334585608.

The previous prime is 669412837. The next prime is 669412867. The reversal of 669412846 is 648214966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×669412846² = 896227116779639432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 669412796 and 669412805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53316 + ... + 64663.

It is an arithmetic number, because the mean of its divisors is an integer number (125560215).

Almost surely, 2^669412846 is an apocalyptic number.

669412846 is a deficient number, since it is larger than the sum of its proper divisors (335068874).

669412846 is a wasteful number, since it uses less digits than its factorization.

669412846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120818.

The product of its digits is 497664, while the sum is 46.

The square root of 669412846 is about 25873.0138561398. The cubic root of 669412846 is about 874.7783257773.

The spelling of 669412846 in words is "six hundred sixty-nine million, four hundred twelve thousand, eight hundred forty-six".