10680391 has 2 divisors, whose sum is σ = 10680392. Its totient is φ = 10680390.

The previous prime is 10680359. The next prime is 10680407. The reversal of 10680391 is 19308601.

It is a happy number.

10680391 is digitally balanced in base 2, 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 10680391 - 2⁵ = 10680359 is a prime.

It is a super-2 number, since 2×10680391² = 228141503825762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10680311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5340195 + 5340196.

It is an arithmetic number, because the mean of its divisors is an integer number (5340196).

Almost surely, 2^10680391 is an apocalyptic number.

10680391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10680391 is an equidigital number, since it uses as much as digits as its factorization.

10680391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 10680391 is about 3268.0867491546. The cubic root of 10680391 is about 220.2228526938. Note that the first 3 decimals are identical.

Adding to 10680391 its reverse (19308601), we get a palindrome (29988992).

The spelling of 10680391 in words is "ten million, six hundred eighty thousand, three hundred ninety-one".