13343987 has 2 divisors, whose sum is σ = 13343988. Its totient is φ = 13343986.

The previous prime is 13343977. The next prime is 13344007. The reversal of 13343987 is 78934331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13343987 - 2⁸ = 13343731 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13343987.

It is not a weakly prime, because it can be changed into another prime (13343917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6671993 + 6671994.

It is an arithmetic number, because the mean of its divisors is an integer number (6671994).

Almost surely, 2^13343987 is an apocalyptic number.

13343987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13343987 is an equidigital number, since it uses as much as digits as its factorization.

13343987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 13343987 is about 3652.9422387987. The cubic root of 13343987 is about 237.1893600783.

The spelling of 13343987 in words is "thirteen million, three hundred forty-three thousand, nine hundred eighty-seven".