13697380 has 12 divisors (see below), whose sum is σ = 28764540. Its totient is φ = 5478944.

The previous prime is 13697377. The next prime is 13697389. The reversal of 13697380 is 8379631.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 6853924 = 2616^2 + 2618^2 .

It is not an unprimeable number, because it can be changed into a prime (13697389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342415 + ... + 342454.

It is an arithmetic number, because the mean of its divisors is an integer number (2397045).

Almost surely, 2^13697380 is an apocalyptic number.

13697380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13697380 is an abundant number, since it is smaller than the sum of its proper divisors (15067160).

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

13697380 is a wasteful number, since it uses less digits than its factorization.

13697380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684878 (or 684876 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13697380 is about 3700.9971629279. The cubic root of 13697380 is about 239.2649967106.

The spelling of 13697380 in words is "thirteen million, six hundred ninety-seven thousand, three hundred eighty".