890459331 has 4 divisors (see below), whose sum is σ = 1187279112. Its totient is φ = 593639552.

The previous prime is 890459327. The next prime is 890459341. The reversal of 890459331 is 133954098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 890459331 - 2² = 890459327 is a prime.

It is a super-2 number, since 2×890459331² = 1585835640329935122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (890459341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148409886 + ... + 148409891.

It is an arithmetic number, because the mean of its divisors is an integer number (296819778).

Almost surely, 2^890459331 is an apocalyptic number.

890459331 is a deficient number, since it is larger than the sum of its proper divisors (296819781).

890459331 is a wasteful number, since it uses less digits than its factorization.

890459331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296819780.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 890459331 is about 29840.5651923686. The cubic root of 890459331 is about 962.0656227611.

The spelling of 890459331 in words is "eight hundred ninety million, four hundred fifty-nine thousand, three hundred thirty-one".