13047797 has 4 divisors (see below), whose sum is σ = 14911776. Its totient is φ = 11183820.

The previous prime is 13047787. The next prime is 13047809. The reversal of 13047797 is 79774031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79774031 = 61 ⋅1307771.

It is a cyclic number.

It is not a de Polignac number, because 13047797 - 2¹⁴ = 13031413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13047797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13047707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931979 + ... + 931992.

It is an arithmetic number, because the mean of its divisors is an integer number (3727944).

Almost surely, 2^13047797 is an apocalyptic number.

It is an amenable number.

13047797 is a deficient number, since it is larger than the sum of its proper divisors (1863979).

13047797 is an equidigital number, since it uses as much as digits as its factorization.

13047797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863978.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 13047797 is about 3612.1734454480. The cubic root of 13047797 is about 235.4212874581.

The spelling of 13047797 in words is "thirteen million, forty-seven thousand, seven hundred ninety-seven".