13690457 has 16 divisors (see below), whose sum is σ = 15940800. Its totient is φ = 11619840.

The previous prime is 13690441. The next prime is 13690477. The reversal of 13690457 is 75409631.

13690457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13690457 - 2⁴ = 13690441 is a prime.

It is a super-2 number, since 2×13690457² = 374857225737698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13690427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33269 + ... + 33677.

It is an arithmetic number, because the mean of its divisors is an integer number (996300).

Almost surely, 2^13690457 is an apocalyptic number.

13690457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13690457 is a deficient number, since it is larger than the sum of its proper divisors (2250343).

13690457 is a wasteful number, since it uses less digits than its factorization.

13690457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 13690457 is about 3700.0617562414. The cubic root of 13690457 is about 239.2246797371.

The spelling of 13690457 in words is "thirteen million, six hundred ninety thousand, four hundred fifty-seven".