13690197 has 6 divisors (see below), whose sum is σ = 19774742. Its totient is φ = 9126792.

The previous prime is 13690181. The next prime is 13690213. The reversal of 13690197 is 79109631.

13690197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13690181) and next prime (13690213).

It can be written as a sum of positive squares in only one way, i.e., 8242641 + 5447556 = 2871^2 + 2334^2 .

It is not a de Polignac number, because 13690197 - 2⁴ = 13690181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13690097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 760558 + ... + 760575.

Almost surely, 2^13690197 is an apocalyptic number.

It is an amenable number.

13690197 is a deficient number, since it is larger than the sum of its proper divisors (6084545).

13690197 is a wasteful number, since it uses less digits than its factorization.

13690197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521139 (or 1521136 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13690197 is about 3700.0266215259. The cubic root of 13690197 is about 239.2231653292.

The spelling of 13690197 in words is "thirteen million, six hundred ninety thousand, one hundred ninety-seven".