84807142 has 12 divisors (see below), whose sum is σ = 147979980. Its totient is φ = 36345876.

The previous prime is 84807139. The next prime is 84807143. The reversal of 84807142 is 24170848.

It is a junction number, because it is equal to n+sod(n) for n = 84807098 and 84807107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84807143) 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 5 ways as a sum of consecutive naturals, for example, 432592 + ... + 432787.

It is an arithmetic number, because the mean of its divisors is an integer number (12331665).

Almost surely, 2^84807142 is an apocalyptic number.

84807142 is a deficient number, since it is larger than the sum of its proper divisors (63172838).

84807142 is a wasteful number, since it uses less digits than its factorization.

84807142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865395 (or 865388 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 84807142 is about 9209.0793242321. The cubic root of 84807142 is about 439.3501805858.

The spelling of 84807142 in words is "eighty-four million, eight hundred seven thousand, one hundred forty-two".