13700784 has 20 divisors (see below), whose sum is σ = 35393816. Its totient is φ = 4566912.

The previous prime is 13700779. The next prime is 13700807. The reversal of 13700784 is 48700731.

It is a happy number.

It is a super-2 number, since 2×13700784² = 375422964429312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142669 + ... + 142764.

Almost surely, 2^13700784 is an apocalyptic number.

It is an amenable number.

13700784 is an abundant number, since it is smaller than the sum of its proper divisors (21693032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13700784 is a wasteful number, since it uses less digits than its factorization.

13700784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285444 (or 285438 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 13700784 is about 3701.4570104217. The cubic root of 13700784 is about 239.2848153569.

The spelling of 13700784 in words is "thirteen million, seven hundred thousand, seven hundred eighty-four".