10246991 has 2 divisors, whose sum is σ = 10246992. Its totient is φ = 10246990.

The previous prime is 10246939. The next prime is 10246993. The reversal of 10246991 is 19964201.

10246991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10246991 - 2⁶ = 10246927 is a prime.

It is a Sophie Germain prime.

Together with 10246993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10246993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5123495 + 5123496.

It is an arithmetic number, because the mean of its divisors is an integer number (5123496).

Almost surely, 2^10246991 is an apocalyptic number.

10246991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10246991 is an equidigital number, since it uses as much as digits as its factorization.

10246991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 10246991 is about 3201.0921573738. The cubic root of 10246991 is about 217.2028160377.

The spelling of 10246991 in words is "ten million, two hundred forty-six thousand, nine hundred ninety-one".