13861417 has 2 divisors, whose sum is σ = 13861418. Its totient is φ = 13861416.

The previous prime is 13861411. The next prime is 13861439. The reversal of 13861417 is 71416831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9126441 + 4734976 = 3021^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 13861417 - 2²³ = 5472809 is a prime.

It is not a weakly prime, because it can be changed into another prime (13861411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6930708 + 6930709.

It is an arithmetic number, because the mean of its divisors is an integer number (6930709).

Almost surely, 2^13861417 is an apocalyptic number.

It is an amenable number.

13861417 is a deficient number, since it is larger than the sum of its proper divisors (1).

13861417 is an equidigital number, since it uses as much as digits as its factorization.

13861417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 13861417 is about 3723.0923974567. The cubic root of 13861417 is about 240.2163384964.

The spelling of 13861417 in words is "thirteen million, eight hundred sixty-one thousand, four hundred seventeen".