10323991 has 2 divisors, whose sum is σ = 10323992. Its totient is φ = 10323990.

The previous prime is 10323983. The next prime is 10324003. The reversal of 10323991 is 19932301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10323991 - 2³ = 10323983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10323491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5161995 + 5161996.

It is an arithmetic number, because the mean of its divisors is an integer number (5161996).

Almost surely, 2^10323991 is an apocalyptic number.

10323991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10323991 is an equidigital number, since it uses as much as digits as its factorization.

10323991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 10323991 is about 3213.0967928153. The cubic root of 10323991 is about 217.7455086526.

The spelling of 10323991 in words is "ten million, three hundred twenty-three thousand, nine hundred ninety-one".