13073399 has 4 divisors (see below), whose sum is σ = 13102464. Its totient is φ = 13044336.

The previous prime is 13073393. The next prime is 13073441. The reversal of 13073399 is 99337031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99337031 = 3119 ⋅31849.

It is a cyclic number.

It is not a de Polignac number, because 13073399 - 2⁸ = 13073143 is a prime.

It is a super-2 number, since 2×13073399² = 341827522826402, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13073393) 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, 13847 + ... + 14760.

It is an arithmetic number, because the mean of its divisors is an integer number (3275616).

Almost surely, 2^13073399 is an apocalyptic number.

13073399 is a deficient number, since it is larger than the sum of its proper divisors (29065).

13073399 is an equidigital number, since it uses as much as digits as its factorization.

13073399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29064.

The product of its (nonzero) digits is 15309, while the sum is 35.

The square root of 13073399 is about 3615.7155585029. The cubic root of 13073399 is about 235.5751657444.

The spelling of 13073399 in words is "thirteen million, seventy-three thousand, three hundred ninety-nine".