56786039 has 4 divisors (see below), whose sum is σ = 57114456. Its totient is φ = 56457624.

The previous prime is 56786033. The next prime is 56786047. The reversal of 56786039 is 93068765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93068765 = 5 ⋅18613753.

It is a cyclic number.

It is not a de Polignac number, because 56786039 - 2²⁰ = 55737463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56786033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163949 + ... + 164294.

It is an arithmetic number, because the mean of its divisors is an integer number (14278614).

Almost surely, 2^56786039 is an apocalyptic number.

56786039 is a deficient number, since it is larger than the sum of its proper divisors (328417).

56786039 is a wasteful number, since it uses less digits than its factorization.

56786039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328416.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 56786039 is about 7535.6511994651. The cubic root of 56786039 is about 384.3679718370.

The spelling of 56786039 in words is "fifty-six million, seven hundred eighty-six thousand, thirty-nine".