30968361 has 6 divisors (see below), whose sum is σ = 44732090. Its totient is φ = 20645568.

The previous prime is 30968341. The next prime is 30968369. The reversal of 30968361 is 16386903.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30869136 + 99225 = 5556^2 + 315^2 .

It is not a de Polignac number, because 30968361 - 2¹⁰ = 30967337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30968369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1720456 + ... + 1720473.

Almost surely, 2^30968361 is an apocalyptic number.

It is an amenable number.

30968361 is a deficient number, since it is larger than the sum of its proper divisors (13763729).

30968361 is a wasteful number, since it uses less digits than its factorization.

30968361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440935 (or 3440932 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30968361 is about 5564.9223714262. The cubic root of 30968361 is about 314.0311577396.

It can be divided in two parts, 30968 and 361, that added together give a square (31329 = 177²).

The spelling of 30968361 in words is "thirty million, nine hundred sixty-eight thousand, three hundred sixty-one".