30948705 has 12 divisors (see below), whose sum is σ = 53644500. Its totient is φ = 16505952.

The previous prime is 30948689. The next prime is 30948737. The reversal of 30948705 is 50784903.

It can be written as a sum of positive squares in 2 ways, for example, as 9381969 + 21566736 = 3063^2 + 4644^2 .

It is not a de Polignac number, because 30948705 - 2⁴ = 30948689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30948705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343830 + ... + 343919.

It is an arithmetic number, because the mean of its divisors is an integer number (4470375).

Almost surely, 2^30948705 is an apocalyptic number.

It is an amenable number.

30948705 is a deficient number, since it is larger than the sum of its proper divisors (22695795).

30948705 is a wasteful number, since it uses less digits than its factorization.

30948705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687760 (or 687757 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 30948705 is about 5563.1560287305. The cubic root of 30948705 is about 313.9647038639.

The spelling of 30948705 in words is "thirty million, nine hundred forty-eight thousand, seven hundred five".