13706491 has 2 divisors, whose sum is σ = 13706492. Its totient is φ = 13706490.

The previous prime is 13706477. The next prime is 13706513. The reversal of 13706491 is 19460731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13706491 - 2¹³ = 13698299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13706401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6853245 + 6853246.

It is an arithmetic number, because the mean of its divisors is an integer number (6853246).

Almost surely, 2^13706491 is an apocalyptic number.

13706491 is a deficient number, since it is larger than the sum of its proper divisors (1).

13706491 is an equidigital number, since it uses as much as digits as its factorization.

13706491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13706491 is about 3702.2278427995. The cubic root of 13706491 is about 239.3180350830.

The spelling of 13706491 in words is "thirteen million, seven hundred six thousand, four hundred ninety-one".