13284657 has 6 divisors (see below), whose sum is σ = 19188962. Its totient is φ = 8856432.

The previous prime is 13284653. The next prime is 13284671. The reversal of 13284657 is 75648231.

13284657 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 389376 = 3591^2 + 624^2 .

It is not a de Polignac number, because 13284657 - 2² = 13284653 is a prime.

It is a super-2 number, since 2×13284657² = 352964223215298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13284653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 738028 + ... + 738045.

Almost surely, 2^13284657 is an apocalyptic number.

It is an amenable number.

13284657 is a deficient number, since it is larger than the sum of its proper divisors (5904305).

13284657 is a wasteful number, since it uses less digits than its factorization.

13284657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476079 (or 1476076 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 13284657 is about 3644.8123408483. The cubic root of 13284657 is about 236.8373075597.

The spelling of 13284657 in words is "thirteen million, two hundred eighty-four thousand, six hundred fifty-seven".