30964989 has 12 divisors (see below), whose sum is σ = 45381728. Its totient is φ = 18766440.

The previous prime is 30964987. The next prime is 30964991. The reversal of 30964989 is 98946903.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30964987) and next prime (30964991).

It is not a de Polignac number, because 30964989 - 2¹ = 30964987 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30964987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42289 + ... + 43014.

Almost surely, 2^30964989 is an apocalyptic number.

It is an amenable number.

30964989 is a deficient number, since it is larger than the sum of its proper divisors (14416739).

30964989 is a wasteful number, since it uses less digits than its factorization.

30964989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85328 (or 85317 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 30964989 is about 5564.6193939927. The cubic root of 30964989 is about 314.0197595311.

The spelling of 30964989 in words is "thirty million, nine hundred sixty-four thousand, nine hundred eighty-nine".