318890669 has 8 divisors (see below), whose sum is σ = 321307392. Its totient is φ = 316483200.

The previous prime is 318890659. The next prime is 318890683. The reversal of 318890669 is 966098813.

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 318890669 - 2⁸ = 318890413 is a prime.

It is a super-2 number, since 2×318890669² = 203382517550535122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318890639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76694 + ... + 80744.

It is an arithmetic number, because the mean of its divisors is an integer number (40163424).

Almost surely, 2^318890669 is an apocalyptic number.

It is an amenable number.

318890669 is a deficient number, since it is larger than the sum of its proper divisors (2416723).

318890669 is a wasteful number, since it uses less digits than its factorization.

318890669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 318890669 is about 17857.5101567940. The cubic root of 318890669 is about 683.1990763536.

The spelling of 318890669 in words is "three hundred eighteen million, eight hundred ninety thousand, six hundred sixty-nine".