13643801 has 2 divisors, whose sum is σ = 13643802. Its totient is φ = 13643800.

The previous prime is 13643797. The next prime is 13643827. The reversal of 13643801 is 10834631.

It is an a-pointer prime, because the next prime (13643827) can be obtained adding 13643801 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9461776 + 4182025 = 3076^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 13643801 - 2² = 13643797 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13642801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6821900 + 6821901.

It is an arithmetic number, because the mean of its divisors is an integer number (6821901).

Almost surely, 2^13643801 is an apocalyptic number.

It is an amenable number.

13643801 is a deficient number, since it is larger than the sum of its proper divisors (1).

13643801 is an equidigital number, since it uses as much as digits as its factorization.

13643801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13643801 is about 3693.7516159049. The cubic root of 13643801 is about 238.9526174867.

The spelling of 13643801 in words is "thirteen million, six hundred forty-three thousand, eight hundred one".