13902769 has 2 divisors, whose sum is σ = 13902770. Its totient is φ = 13902768.

The previous prime is 13902761. The next prime is 13902773. The reversal of 13902769 is 96720931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12510369 + 1392400 = 3537^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 13902769 - 2³ = 13902761 is a prime.

It is a super-2 number, since 2×13902769² = 386573971734722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13902761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951384 + 6951385.

It is an arithmetic number, because the mean of its divisors is an integer number (6951385).

Almost surely, 2^13902769 is an apocalyptic number.

It is an amenable number.

13902769 is a deficient number, since it is larger than the sum of its proper divisors (1).

13902769 is an equidigital number, since it uses as much as digits as its factorization.

13902769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 13902769 is about 3728.6417097919. The cubic root of 13902769 is about 240.4549760619.

The spelling of 13902769 in words is "thirteen million, nine hundred two thousand, seven hundred sixty-nine".