30706005 has 16 divisors (see below), whose sum is σ = 53596224. Its totient is φ = 14887680.

The previous prime is 30705977. The next prime is 30706037. The reversal of 30706005 is 50060703.

It is not a de Polignac number, because 30706005 - 2⁸ = 30705749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92884 + ... + 93213.

It is an arithmetic number, because the mean of its divisors is an integer number (3349764).

Almost surely, 2^30706005 is an apocalyptic number.

It is an amenable number.

30706005 is a deficient number, since it is larger than the sum of its proper divisors (22890219).

30706005 is a wasteful number, since it uses less digits than its factorization.

30706005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186116.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30706005 is about 5541.2999377402. The cubic root of 30706005 is about 313.1418445446.

Adding to 30706005 its reverse (50060703), we get a palindrome (80766708).

The spelling of 30706005 in words is "thirty million, seven hundred six thousand, five".