13621463 has 2 divisors, whose sum is σ = 13621464. Its totient is φ = 13621462.

The previous prime is 13621459. The next prime is 13621469. The reversal of 13621463 is 36412631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13621463 - 2² = 13621459 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13621469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6810731 + 6810732.

It is an arithmetic number, because the mean of its divisors is an integer number (6810732).

Almost surely, 2^13621463 is an apocalyptic number.

13621463 is a deficient number, since it is larger than the sum of its proper divisors (1).

13621463 is an equidigital number, since it uses as much as digits as its factorization.

13621463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 13621463 is about 3690.7266222250. The cubic root of 13621463 is about 238.8221396908.

The spelling of 13621463 in words is "thirteen million, six hundred twenty-one thousand, four hundred sixty-three".