13690812 has 12 divisors (see below), whose sum is σ = 31945256. Its totient is φ = 4563600.

The previous prime is 13690793. The next prime is 13690823. The reversal of 13690812 is 21809631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13690812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570439 + ... + 570462.

Almost surely, 2^13690812 is an apocalyptic number.

13690812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13690812 is an abundant number, since it is smaller than the sum of its proper divisors (18254444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13690812 is a wasteful number, since it uses less digits than its factorization.

13690812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140908 (or 1140906 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 13690812 is about 3700.1097281027. The cubic root of 13690812 is about 239.2267474555.

The spelling of 13690812 in words is "thirteen million, six hundred ninety thousand, eight hundred twelve".