13697790 has 32 divisors (see below), whose sum is σ = 32973696. Its totient is φ = 3641760.

The previous prime is 13697777. The next prime is 13697791. The reversal of 13697790 is 9779631.

13697790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13697791) 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, 16485 + ... + 17295.

It is an arithmetic number, because the mean of its divisors is an integer number (1030428).

Almost surely, 2^13697790 is an apocalyptic number.

13697790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13697790 is an abundant number, since it is smaller than the sum of its proper divisors (19275906).

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

13697790 is a wasteful number, since it uses less digits than its factorization.

13697790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 13697790 is about 3701.0525529908. The cubic root of 13697790 is about 239.2673839717.

The spelling of 13697790 in words is "thirteen million, six hundred ninety-seven thousand, seven hundred ninety".