30693969 has 6 divisors (see below), whose sum is σ = 44335746. Its totient is φ = 20462640.

The previous prime is 30693967. The next prime is 30694007. The reversal of 30693969 is 96939603.

It can be written as a sum of positive squares in only one way, i.e., 29289744 + 1404225 = 5412^2 + 1185^2 .

It is not a de Polignac number, because 30693969 - 2¹ = 30693967 is a prime.

It is a super-2 number, since 2×30693969² = 1884239465945922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30693967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1705212 + ... + 1705229.

It is an arithmetic number, because the mean of its divisors is an integer number (7389291).

Almost surely, 2^30693969 is an apocalyptic number.

It is an amenable number.

30693969 is a deficient number, since it is larger than the sum of its proper divisors (13641777).

30693969 is a wasteful number, since it uses less digits than its factorization.

30693969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410447 (or 3410444 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The square root of 30693969 is about 5540.2138045386. The cubic root of 30693969 is about 313.1009245596.

The spelling of 30693969 in words is "thirty million, six hundred ninety-three thousand, nine hundred sixty-nine".