56834639 has 4 divisors (see below), whose sum is σ = 56957856. Its totient is φ = 56711424.

The previous prime is 56834629. The next prime is 56834653. The reversal of 56834639 is 93643865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56834639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56834639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56834629) 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, 60914 + ... + 61839.

It is an arithmetic number, because the mean of its divisors is an integer number (14239464).

Almost surely, 2^56834639 is an apocalyptic number.

56834639 is a deficient number, since it is larger than the sum of its proper divisors (123217).

56834639 is a wasteful number, since it uses less digits than its factorization.

56834639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123216.

The product of its digits is 466560, while the sum is 44.

The square root of 56834639 is about 7538.8751813517. The cubic root of 56834639 is about 384.4775935983.

The spelling of 56834639 in words is "fifty-six million, eight hundred thirty-four thousand, six hundred thirty-nine".