13277421 has 12 divisors (see below), whose sum is σ = 19366048. Its totient is φ = 8765064.

The previous prime is 13277351. The next prime is 13277437. The reversal of 13277421 is 12477231.

It is a happy number.

It is not a de Polignac number, because 13277421 - 2¹⁷ = 13146349 is a prime.

It is a super-2 number, since 2×13277421² = 352579816822482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13277471) 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, 6235 + ... + 8088.

Almost surely, 2^13277421 is an apocalyptic number.

It is an amenable number.

13277421 is a deficient number, since it is larger than the sum of its proper divisors (6088627).

13277421 is a wasteful number, since it uses less digits than its factorization.

13277421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14432 (or 14429 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 13277421 is about 3643.8195619432. The cubic root of 13277421 is about 236.7942988968.

The spelling of 13277421 in words is "thirteen million, two hundred seventy-seven thousand, four hundred twenty-one".