10965991 has 2 divisors, whose sum is σ = 10965992. Its totient is φ = 10965990.

The previous prime is 10965959. The next prime is 10966001. The reversal of 10965991 is 19956901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10965991 - 2⁵ = 10965959 is a prime.

It is a super-2 number, since 2×10965991² = 240505917224162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10965191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5482995 + 5482996.

It is an arithmetic number, because the mean of its divisors is an integer number (5482996).

Almost surely, 2^10965991 is an apocalyptic number.

10965991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10965991 is an equidigital number, since it uses as much as digits as its factorization.

10965991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 10965991 is about 3311.4937716988. The cubic root of 10965991 is about 222.1685744478.

The spelling of 10965991 in words is "ten million, nine hundred sixty-five thousand, nine hundred ninety-one".