13697424 has 120 divisors (see below), whose sum is σ = 42969472. Its totient is φ = 4199040.

The previous prime is 13697399. The next prime is 13697429. The reversal of 13697424 is 42479631.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13697429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50409 + ... + 50679.

Almost surely, 2^13697424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13697424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21484736).

13697424 is an abundant number, since it is smaller than the sum of its proper divisors (29272048).

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

13697424 is a wasteful number, since it uses less digits than its factorization.

13697424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 289 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 13697424 is about 3701.0031072670. The cubic root of 13697424 is about 239.2652529067.

The spelling of 13697424 in words is "thirteen million, six hundred ninety-seven thousand, four hundred twenty-four".