56740789 has 12 divisors (see below), whose sum is σ = 65538336. Its totient is φ = 48119832.

The previous prime is 56740777. The next prime is 56740807. The reversal of 56740789 is 98704765.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-56740789 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 (56140789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254332 + ... + 254554.

It is an arithmetic number, because the mean of its divisors is an integer number (5461528).

Almost surely, 2^56740789 is an apocalyptic number.

It is an amenable number.

56740789 is a deficient number, since it is larger than the sum of its proper divisors (8797547).

56740789 is an equidigital number, since it uses as much as digits as its factorization.

56740789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 56740789 is about 7532.6482063083. The cubic root of 56740789 is about 384.2658500664.

The spelling of 56740789 in words is "fifty-six million, seven hundred forty thousand, seven hundred eighty-nine".