13697401 has 3 divisors (see below), whose sum is σ = 13701103. Its totient is φ = 13693700.

The previous prime is 13697399. The next prime is 13697429. The reversal of 13697401 is 10479631.

It is a happy number.

The square root of 13697401 is 3701.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5517801 + 8179600 = 2349^2 + 2860^2 .

It is not a de Polignac number, because 13697401 - 2¹ = 13697399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13697471) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1851 + ... + 5551.

Almost surely, 2^13697401 is an apocalyptic number.

13697401 is the 3701-st square number.

13697401 is the 1851-st centered octagonal number.

It is an amenable number.

13697401 is a deficient number, since it is larger than the sum of its proper divisors (3702).

13697401 is an frugal number, since it uses more digits than its factorization.

13697401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7402 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The cubic root of 13697401 is about 239.2651189861.

The spelling of 13697401 in words is "thirteen million, six hundred ninety-seven thousand, four hundred one".