890669 has 8 divisors (see below), whose sum is σ = 968352. Its totient is φ = 814320.

The previous prime is 890657. The next prime is 890671. The reversal of 890669 is 966098.

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

It is not a de Polignac number, because 890669 - 2⁴ = 890653 is a prime.

It is a super-2 number, since 2×890669² = 1586582535122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890609) 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, 1442 + ... + 1964.

It is an arithmetic number, because the mean of its divisors is an integer number (121044).

2⁸⁹⁰⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

890669 is a deficient number, since it is larger than the sum of its proper divisors (77683).

890669 is a wasteful number, since it uses less digits than its factorization.

890669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 890669 is about 943.7526158904. The cubic root of 890669 is about 96.2141126680.

The spelling of 890669 in words is "eight hundred ninety thousand, six hundred sixty-nine".