30796785 has 12 divisors (see below), whose sum is σ = 53381172. Its totient is φ = 16424928.

The previous prime is 30796769. The next prime is 30796789. The reversal of 30796785 is 58769703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18455616 + 12341169 = 4296^2 + 3513^2 .

It is not a de Polignac number, because 30796785 - 2⁴ = 30796769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 684373 = 30796785 / (3 + 0 + 7 + 9 + 6 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 30796785.

It is not an unprimeable number, because it can be changed into a prime (30796789) 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 11 ways as a sum of consecutive naturals, for example, 342142 + ... + 342231.

It is an arithmetic number, because the mean of its divisors is an integer number (4448431).

Almost surely, 2^30796785 is an apocalyptic number.

It is an amenable number.

30796785 is a deficient number, since it is larger than the sum of its proper divisors (22584387).

30796785 is a wasteful number, since it uses less digits than its factorization.

30796785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684384 (or 684381 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 30796785 is about 5549.4851112513. The cubic root of 30796785 is about 313.4501343884.

The spelling of 30796785 in words is "thirty million, seven hundred ninety-six thousand, seven hundred eighty-five".