10331989 has 2 divisors, whose sum is σ = 10331990. Its totient is φ = 10331988.

The previous prime is 10331987. The next prime is 10332011. The reversal of 10331989 is 98913301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10304100 + 27889 = 3210^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 10331989 - 2¹ = 10331987 is a prime.

It is a super-2 number, since 2×10331989² = 213499993392242, which contains 22 as substring.

Together with 10331987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10331987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5165994 + 5165995.

It is an arithmetic number, because the mean of its divisors is an integer number (5165995).

Almost surely, 2^10331989 is an apocalyptic number.

It is an amenable number.

10331989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10331989 is an equidigital number, since it uses as much as digits as its factorization.

10331989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 10331989 is about 3214.3411455538. The cubic root of 10331989 is about 217.8017233164.

The spelling of 10331989 in words is "ten million, three hundred thirty-one thousand, nine hundred eighty-nine".