13277997 has 12 divisors (see below), whose sum is σ = 19279260. Its totient is φ = 8805888.

The previous prime is 13277987. The next prime is 13278011. The reversal of 13277997 is 79977231.

It can be written as a sum of positive squares in 2 ways, for example, as 10634121 + 2643876 = 3261^2 + 1626^2 .

It is not a de Polignac number, because 13277997 - 2⁴ = 13277981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13277917) 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, 1972 + ... + 5517.

It is an arithmetic number, because the mean of its divisors is an integer number (1606605).

Almost surely, 2^13277997 is an apocalyptic number.

It is an amenable number.

13277997 is a deficient number, since it is larger than the sum of its proper divisors (6001263).

13277997 is a wasteful number, since it uses less digits than its factorization.

13277997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692 (or 7689 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 13277997 is about 3643.8985990282. The cubic root of 13277997 is about 236.7977230443.

The spelling of 13277997 in words is "thirteen million, two hundred seventy-seven thousand, nine hundred ninety-seven".