669371413 has 8 divisors (see below), whose sum is σ = 709622208. Its totient is φ = 629217984.

The previous prime is 669371401. The next prime is 669371419. The reversal of 669371413 is 314173966.

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 669371413 - 2²¹ = 667274261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669371419) 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, 9931 + ... + 37912.

It is an arithmetic number, because the mean of its divisors is an integer number (88702776).

Almost surely, 2^669371413 is an apocalyptic number.

It is an amenable number.

669371413 is a deficient number, since it is larger than the sum of its proper divisors (40250795).

669371413 is a wasteful number, since it uses less digits than its factorization.

669371413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48683.

The product of its digits is 81648, while the sum is 40.

The square root of 669371413 is about 25872.2131446075. The cubic root of 669371413 is about 874.7602774043.

The spelling of 669371413 in words is "six hundred sixty-nine million, three hundred seventy-one thousand, four hundred thirteen".