12290984 has 8 divisors (see below), whose sum is σ = 23045610. Its totient is φ = 6145488.

The previous prime is 12290981. The next prime is 12290987. The reversal of 12290984 is 48909221.

It is an interprime number because it is at equal distance from previous prime (12290981) and next prime (12290987).

It can be written as a sum of positive squares in only one way, i.e., 8868484 + 3422500 = 2978^2 + 1850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×12290984³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12290981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 768179 + ... + 768194.

Almost surely, 2^12290984 is an apocalyptic number.

It is an amenable number.

12290984 is a deficient number, since it is larger than the sum of its proper divisors (10754626).

12290984 is a wasteful number, since it uses less digits than its factorization.

12290984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536379 (or 1536375 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 12290984 is about 3505.8499682673. The cubic root of 12290984 is about 230.7786088724.

The spelling of 12290984 in words is "twelve million, two hundred ninety thousand, nine hundred eighty-four".