56686443 has 24 divisors (see below), whose sum is σ = 87460800. Its totient is φ = 32543280.

The previous prime is 56686423. The next prime is 56686463. The reversal of 56686443 is 34468665.

It is an interprime number because it is at equal distance from previous prime (56686423) and next prime (56686463).

It is not a de Polignac number, because 56686443 - 2¹² = 56682347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56686395 and 56686404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56686423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2788 + ... + 11006.

It is an arithmetic number, because the mean of its divisors is an integer number (3644200).

Almost surely, 2^56686443 is an apocalyptic number.

56686443 is a deficient number, since it is larger than the sum of its proper divisors (30774357).

56686443 is a wasteful number, since it uses less digits than its factorization.

56686443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8263 (or 8252 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 56686443 is about 7529.0399786427. The cubic root of 56686443 is about 384.1431283400.

The spelling of 56686443 in words is "fifty-six million, six hundred eighty-six thousand, four hundred forty-three".