56983939 has 2 divisors, whose sum is σ = 56983940. Its totient is φ = 56983938.

The previous prime is 56983919. The next prime is 56983963. The reversal of 56983939 is 93938965.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56983939 - 2¹³ = 56975747 is a prime.

It is not a weakly prime, because it can be changed into another prime (56983909) by changing a digit.

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 as a sum of consecutive naturals, namely, 28491969 + 28491970.

It is an arithmetic number, because the mean of its divisors is an integer number (28491970).

Almost surely, 2^56983939 is an apocalyptic number.

56983939 is a deficient number, since it is larger than the sum of its proper divisors (1).

56983939 is an equidigital number, since it uses as much as digits as its factorization.

56983939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The square root of 56983939 is about 7548.7706946231. The cubic root of 56983939 is about 384.8139630791.

It can be divided in two parts, 5698 and 3939, that multiplied together give a palindrome (22444422).

The spelling of 56983939 in words is "fifty-six million, nine hundred eighty-three thousand, nine hundred thirty-nine".