13400697 has 32 divisors (see below), whose sum is σ = 19918080. Its totient is φ = 7983360.

The previous prime is 13400693. The next prime is 13400707. The reversal of 13400697 is 79600431.

It is a happy number.

It is not a de Polignac number, because 13400697 - 2² = 13400693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13400693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73947 + ... + 74127.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 2^13400697 is an apocalyptic number.

It is an amenable number.

13400697 is a deficient number, since it is larger than the sum of its proper divisors (6517383).

13400697 is a wasteful number, since it uses less digits than its factorization.

13400697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

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

The square root of 13400697 is about 3660.6962452517. The cubic root of 13400697 is about 237.5248919432.

The spelling of 13400697 in words is "thirteen million, four hundred thousand, six hundred ninety-seven".