669586799 has 8 divisors (see below), whose sum is σ = 771268608. Its totient is φ = 569411640.

The previous prime is 669586793. The next prime is 669586807. The reversal of 669586799 is 997685966.

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

It is not a de Polignac number, because 669586799 - 2²⁴ = 652809583 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 (669586793) 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, 375707 + ... + 377484.

It is an arithmetic number, because the mean of its divisors is an integer number (96408576).

Almost surely, 2^669586799 is an apocalyptic number.

669586799 is a deficient number, since it is larger than the sum of its proper divisors (101681809).

669586799 is a wasteful number, since it uses less digits than its factorization.

669586799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753325.

The product of its digits is 44089920, while the sum is 65.

The square root of 669586799 is about 25876.3753064451. The cubic root of 669586799 is about 874.8540922424.

It can be divided in two parts, 6695867 and 99, that added together give a palindrome (6695966).

The spelling of 669586799 in words is "six hundred sixty-nine million, five hundred eighty-six thousand, seven hundred ninety-nine".