13400633 has 2 divisors, whose sum is σ = 13400634. Its totient is φ = 13400632.

The previous prime is 13400591. The next prime is 13400657. The reversal of 13400633 is 33600431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9412624 + 3988009 = 3068^2 + 1997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13400633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13400693) 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, 6700316 + 6700317.

It is an arithmetic number, because the mean of its divisors is an integer number (6700317).

Almost surely, 2^13400633 is an apocalyptic number.

It is an amenable number.

13400633 is a deficient number, since it is larger than the sum of its proper divisors (1).

13400633 is an equidigital number, since it uses as much as digits as its factorization.

13400633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 13400633 is about 3660.6875037348. The cubic root of 13400633 is about 237.5245138132.

The spelling of 13400633 in words is "thirteen million, four hundred thousand, six hundred thirty-three".