669405362 has 8 divisors (see below), whose sum is σ = 1063173276. Its totient is φ = 315014272.

The previous prime is 669405353. The next prime is 669405371. The reversal of 669405362 is 263504966.

669405362 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (669405353) and next prime (669405371).

It can be written as a sum of positive squares in 2 ways, for example, as 669308641 + 96721 = 25871^2 + 311^2 .

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

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, 9844163 + ... + 9844230.

Almost surely, 2^669405362 is an apocalyptic number.

669405362 is a deficient number, since it is larger than the sum of its proper divisors (393767914).

669405362 is a wasteful number, since it uses less digits than its factorization.

669405362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19688412.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 669405362 is about 25872.8692262764. The cubic root of 669405362 is about 874.7750657735.

The spelling of 669405362 in words is "six hundred sixty-nine million, four hundred five thousand, three hundred sixty-two".