30705669 has 8 divisors (see below), whose sum is σ = 45489920. Its totient is φ = 20470428.

The previous prime is 30705643. The next prime is 30705677. The reversal of 30705669 is 96650703.

It is a happy number.

It is not a de Polignac number, because 30705669 - 2⁵ = 30705637 is a prime.

It is a super-2 number, since 2×30705669² = 1885676217475122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30705769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568597 + ... + 568650.

It is an arithmetic number, because the mean of its divisors is an integer number (5686240).

Almost surely, 2^30705669 is an apocalyptic number.

It is an amenable number.

30705669 is a deficient number, since it is larger than the sum of its proper divisors (14784251).

30705669 is a wasteful number, since it uses less digits than its factorization.

30705669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137256 (or 1137250 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 30705669 is about 5541.2696198615. The cubic root of 30705669 is about 313.1407023572.

The spelling of 30705669 in words is "thirty million, seven hundred five thousand, six hundred sixty-nine".