13690775 has 12 divisors (see below), whose sum is σ = 19402032. Its totient is φ = 9387840.

The previous prime is 13690769. The next prime is 13690793. The reversal of 13690775 is 57709631.

It is not a de Polignac number, because 13690775 - 2⁴ = 13690759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38942 + ... + 39291.

It is an arithmetic number, because the mean of its divisors is an integer number (1616836).

Almost surely, 2^13690775 is an apocalyptic number.

13690775 is a deficient number, since it is larger than the sum of its proper divisors (5711257).

13690775 is an equidigital number, since it uses as much as digits as its factorization.

13690775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78250 (or 78245 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 13690775 is about 3700.1047282476. The cubic root of 13690775 is about 239.2265319485.

The spelling of 13690775 in words is "thirteen million, six hundred ninety thousand, seven hundred seventy-five".