13436997 has 8 divisors (see below), whose sum is σ = 20475456. Its totient is φ = 7678272.

The previous prime is 13436989. The next prime is 13436999. The reversal of 13436997 is 79963431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13436997 - 2³ = 13436989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13436999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319908 + ... + 319949.

It is an arithmetic number, because the mean of its divisors is an integer number (2559432).

Almost surely, 2^13436997 is an apocalyptic number.

It is an amenable number.

13436997 is a deficient number, since it is larger than the sum of its proper divisors (7038459).

13436997 is an equidigital number, since it uses as much as digits as its factorization.

13436997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639867.

The product of its digits is 122472, while the sum is 42.

The square root of 13436997 is about 3665.6509653812. The cubic root of 13436997 is about 237.7391688573.

The spelling of 13436997 in words is "thirteen million, four hundred thirty-six thousand, nine hundred ninety-seven".