84427142 has 16 divisors (see below), whose sum is σ = 129254400. Its totient is φ = 41350920.

The previous prime is 84427141. The next prime is 84427153. The reversal of 84427142 is 24172448.

It is a junction number, because it is equal to n+sod(n) for n = 84427099 and 84427108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84427141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18659 + ... + 22737.

It is an arithmetic number, because the mean of its divisors is an integer number (8078400).

Almost surely, 2^84427142 is an apocalyptic number.

84427142 is a deficient number, since it is larger than the sum of its proper divisors (44827258).

84427142 is a wasteful number, since it uses less digits than its factorization.

84427142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291.

The product of its digits is 14336, while the sum is 32.

The square root of 84427142 is about 9188.4243480588. The cubic root of 84427142 is about 438.6929912428.

The spelling of 84427142 in words is "eighty-four million, four hundred twenty-seven thousand, one hundred forty-two".