56907789 has 8 divisors (see below), whose sum is σ = 80340480. Its totient is φ = 35706816.

The previous prime is 56907769. The next prime is 56907797. The reversal of 56907789 is 98770965.

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

It is not a de Polignac number, because 56907789 - 2¹³ = 56899597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1115839 = 56907789 / (5 + 6 + 9 + 0 + 7 + 7 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56907749) 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 in 7 ways as a sum of consecutive naturals, for example, 557869 + ... + 557970.

It is an arithmetic number, because the mean of its divisors is an integer number (10042560).

Almost surely, 2^56907789 is an apocalyptic number.

It is an amenable number.

56907789 is a deficient number, since it is larger than the sum of its proper divisors (23432691).

56907789 is a wasteful number, since it uses less digits than its factorization.

56907789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115859.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 56907789 is about 7543.7251408041. The cubic root of 56907789 is about 384.6424723825.

The spelling of 56907789 in words is "fifty-six million, nine hundred seven thousand, seven hundred eighty-nine".