13697400 has 96 divisors (see below), whose sum is σ = 43680240. Its totient is φ = 3548160.

The previous prime is 13697399. The next prime is 13697429. The reversal of 13697400 is 479631.

It is a happy number.

It is a Cunningham number, because it is equal to 3701²-1.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21892 + ... + 22508.

Almost surely, 2^13697400 is an apocalyptic number.

13697400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13697400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21840120).

13697400 is an abundant number, since it is smaller than the sum of its proper divisors (29982840).

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

13697400 is a wasteful number, since it uses less digits than its factorization.

13697400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 13697400 is about 3700.9998649014. Note that the first 3 decimals coincide. The cubic root of 13697400 is about 239.2651131635.

The spelling of 13697400 in words is "thirteen million, six hundred ninety-seven thousand, four hundred".