13423047 has 32 divisors (see below), whose sum is σ = 21026304. Its totient is φ = 7526400.

The previous prime is 13423019. The next prime is 13423051. The reversal of 13423047 is 74032431.

It is not a de Polignac number, because 13423047 - 2⁸ = 13422791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39663 + ... + 39999.

It is an arithmetic number, because the mean of its divisors is an integer number (657072).

Almost surely, 2^13423047 is an apocalyptic number.

13423047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13423047 is a deficient number, since it is larger than the sum of its proper divisors (7603257).

13423047 is a wasteful number, since it uses less digits than its factorization.

13423047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 13423047 is about 3663.7476714425. The cubic root of 13423047 is about 237.6568684802.

Adding to 13423047 its reverse (74032431), we get a palindrome (87455478).

The spelling of 13423047 in words is "thirteen million, four hundred twenty-three thousand, forty-seven".