30703005 has 12 divisors (see below), whose sum is σ = 53218620. Its totient is φ = 16374912.

The previous prime is 30702983. The next prime is 30703009. The reversal of 30703005 is 50030703.

It can be written as a sum of positive squares in 2 ways, for example, as 11148921 + 19554084 = 3339^2 + 4422^2 .

It is not a de Polignac number, because 30703005 - 2⁶ = 30702941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30703009) 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, 341100 + ... + 341189.

It is an arithmetic number, because the mean of its divisors is an integer number (4434885).

Almost surely, 2^30703005 is an apocalyptic number.

It is an amenable number.

30703005 is a deficient number, since it is larger than the sum of its proper divisors (22515615).

30703005 is a wasteful number, since it uses less digits than its factorization.

30703005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682300 (or 682297 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 30703005 is about 5541.0292365228. The cubic root of 30703005 is about 313.1316461472.

Adding to 30703005 its reverse (50030703), we get a palindrome (80733708).

The spelling of 30703005 in words is "thirty million, seven hundred three thousand, five".