8402984 has 24 divisors (see below), whose sum is σ = 16295130. Its totient is φ = 4062240.

The previous prime is 8402971. The next prime is 8403029. The reversal of 8402984 is 4892048.

It can be written as a sum of positive squares in only one way, i.e., 4708900 + 3694084 = 2170^2 + 1922^2 .

It is a super-2 number, since 2×8402984² = 141220280208512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7142 + ... + 8234.

Almost surely, 2^8402984 is an apocalyptic number.

It is an amenable number.

8402984 is a deficient number, since it is larger than the sum of its proper divisors (7892146).

8402984 is a wasteful number, since it uses less digits than its factorization.

8402984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 8402984 is about 2898.7900924351. The cubic root of 8402984 is about 203.3033393603.

The spelling of 8402984 in words is "eight million, four hundred two thousand, nine hundred eighty-four".