7142984 has 16 divisors (see below), whose sum is σ = 13469820. Its totient is φ = 3551040.

The previous prime is 7142981. The next prime is 7142987. The reversal of 7142984 is 4892417.

It is an interprime number because it is at equal distance from previous prime (7142981) and next prime (7142987).

It can be written as a sum of positive squares in 2 ways, for example, as 5866084 + 1276900 = 2422^2 + 1130^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7142981) 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 in 3 ways as a sum of consecutive naturals, for example, 1019 + ... + 3914.

Almost surely, 2^7142984 is an apocalyptic number.

It is an amenable number.

7142984 is a deficient number, since it is larger than the sum of its proper divisors (6326836).

7142984 is a wasteful number, since it uses less digits than its factorization.

7142984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120 (or 5116 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 7142984 is about 2672.6361518172. The cubic root of 7142984 is about 192.5868186559.

The spelling of 7142984 in words is "seven million, one hundred forty-two thousand, nine hundred eighty-four".