13023705 has 16 divisors (see below), whose sum is σ = 21055104. Its totient is φ = 6873600.

The previous prime is 13023701. The next prime is 13023707. The reversal of 13023705 is 50732031.

It is a happy number.

It is not a de Polignac number, because 13023705 - 2² = 13023701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13023701) 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, 3021 + ... + 5930.

It is an arithmetic number, because the mean of its divisors is an integer number (1315944).

Almost surely, 2^13023705 is an apocalyptic number.

13023705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13023705 is a deficient number, since it is larger than the sum of its proper divisors (8031399).

13023705 is an equidigital number, since it uses as much as digits as its factorization.

13023705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 13023705 is about 3608.8370703040. The cubic root of 13023705 is about 235.2763009365.

Adding to 13023705 its reverse (50732031), we get a palindrome (63755736).

The spelling of 13023705 in words is "thirteen million, twenty-three thousand, seven hundred five".