13273947 has 12 divisors (see below), whose sum is σ = 19444464. Its totient is φ = 8724240.

The previous prime is 13273943. The next prime is 13273969. The reversal of 13273947 is 74937231.

It is not a de Polignac number, because 13273947 - 2² = 13273943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13273943) 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 11 ways as a sum of consecutive naturals, for example, 9748 + ... + 11025.

It is an arithmetic number, because the mean of its divisors is an integer number (1620372).

Almost surely, 2^13273947 is an apocalyptic number.

13273947 is a deficient number, since it is larger than the sum of its proper divisors (6170517).

13273947 is a wasteful number, since it uses less digits than its factorization.

13273947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20850 (or 20847 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 13273947 is about 3643.3428331685. The cubic root of 13273947 is about 236.7736449071.

The spelling of 13273947 in words is "thirteen million, two hundred seventy-three thousand, nine hundred forty-seven".