13772456 has 8 divisors (see below), whose sum is σ = 25823370. Its totient is φ = 6886224.

The previous prime is 13772443. The next prime is 13772459. The reversal of 13772456 is 65427731.

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 2656900 = 3334^2 + 1630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13772459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860771 + ... + 860786.

Almost surely, 2^13772456 is an apocalyptic number.

It is an amenable number.

13772456 is a deficient number, since it is larger than the sum of its proper divisors (12050914).

13772456 is a wasteful number, since it uses less digits than its factorization.

13772456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721563 (or 1721559 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 13772456 is about 3711.1259746875. The cubic root of 13772456 is about 239.7013414633.

The spelling of 13772456 in words is "thirteen million, seven hundred seventy-two thousand, four hundred fifty-six".