56783938 has 8 divisors (see below), whose sum is σ = 85530060. Its totient is φ = 28273920.

The previous prime is 56783929. The next prime is 56783959. The reversal of 56783938 is 83938765.

It can be written as a sum of positive squares in 2 ways, for example, as 48678529 + 8105409 = 6977^2 + 2847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56783938² = 6448831229575688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56783891 and 56783900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58423 + ... + 59386.

Almost surely, 2^56783938 is an apocalyptic number.

56783938 is a deficient number, since it is larger than the sum of its proper divisors (28746122).

56783938 is a wasteful number, since it uses less digits than its factorization.

56783938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118052.

The product of its digits is 1088640, while the sum is 49.

The square root of 56783938 is about 7535.5117941650. The cubic root of 56783938 is about 384.3632314285.

The spelling of 56783938 in words is "fifty-six million, seven hundred eighty-three thousand, nine hundred thirty-eight".