669676341 has 8 divisors (see below), whose sum is σ = 895476384. Its totient is φ = 445163600.

The previous prime is 669676321. The next prime is 669676363. The reversal of 669676341 is 143676966.

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

It is a cyclic number.

It is not a de Polignac number, because 669676341 - 2⁷ = 669676213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669676321) 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, 320610 + ... + 322691.

It is an arithmetic number, because the mean of its divisors is an integer number (111934548).

Almost surely, 2^669676341 is an apocalyptic number.

It is an amenable number.

669676341 is a deficient number, since it is larger than the sum of its proper divisors (225800043).

669676341 is a wasteful number, since it uses less digits than its factorization.

669676341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643651.

The product of its digits is 979776, while the sum is 48.

The square root of 669676341 is about 25878.1054368360. The cubic root of 669676341 is about 874.8930877810.

The spelling of 669676341 in words is "six hundred sixty-nine million, six hundred seventy-six thousand, three hundred forty-one".