13231797 has 16 divisors (see below), whose sum is σ = 18755712. Its totient is φ = 8268800.

The previous prime is 13231787. The next prime is 13231811. The reversal of 13231797 is 79713231.

It is a happy number.

It is not a de Polignac number, because 13231797 - 2⁴ = 13231781 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20128 + ... + 20774.

It is an arithmetic number, because the mean of its divisors is an integer number (1172232).

Almost surely, 2^13231797 is an apocalyptic number.

13231797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13231797 is a deficient number, since it is larger than the sum of its proper divisors (5523915).

13231797 is a wasteful number, since it uses less digits than its factorization.

13231797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its digits is 7938, while the sum is 33.

The square root of 13231797 is about 3637.5537109437. The cubic root of 13231797 is about 236.5227627017.

It can be divided in two parts, 13231 and 797, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13231797 in words is "thirteen million, two hundred thirty-one thousand, seven hundred ninety-seven".