56786239 has 4 divisors (see below), whose sum is σ = 60126624. Its totient is φ = 53445856.

The previous prime is 56786237. The next prime is 56786251. The reversal of 56786239 is 93268765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93268765 = 5 ⋅18653753.

It is a cyclic number.

It is not a de Polignac number, because 56786239 - 2¹ = 56786237 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 (56786237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670167 + ... + 1670200.

It is an arithmetic number, because the mean of its divisors is an integer number (15031656).

Almost surely, 2^56786239 is an apocalyptic number.

56786239 is a deficient number, since it is larger than the sum of its proper divisors (3340385).

56786239 is a wasteful number, since it uses less digits than its factorization.

56786239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340384.

The product of its digits is 544320, while the sum is 46.

The square root of 56786239 is about 7535.6644697067. The cubic root of 56786239 is about 384.3684230835.

The spelling of 56786239 in words is "fifty-six million, seven hundred eighty-six thousand, two hundred thirty-nine".