11902643 has 2 divisors, whose sum is σ = 11902644. Its totient is φ = 11902642.

The previous prime is 11902637. The next prime is 11902651. The reversal of 11902643 is 34620911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11902643 - 2¹² = 11898547 is a prime.

It is not a weakly prime, because it can be changed into another prime (11902603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5951321 + 5951322.

It is an arithmetic number, because the mean of its divisors is an integer number (5951322).

Almost surely, 2^11902643 is an apocalyptic number.

11902643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11902643 is an equidigital number, since it uses as much as digits as its factorization.

11902643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 11902643 is about 3450.0207245754. The cubic root of 11902643 is about 228.3220223972.

The spelling of 11902643 in words is "eleven million, nine hundred two thousand, six hundred forty-three".