84768142 has 4 divisors (see below), whose sum is σ = 127152216. Its totient is φ = 42384070.

The previous prime is 84768121. The next prime is 84768143. The reversal of 84768142 is 24186748.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 84768095 and 84768104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84768143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21192034 + ... + 21192037.

It is an arithmetic number, because the mean of its divisors is an integer number (31788054).

Almost surely, 2^84768142 is an apocalyptic number.

84768142 is a deficient number, since it is larger than the sum of its proper divisors (42384074).

84768142 is a wasteful number, since it uses less digits than its factorization.

84768142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42384073.

The product of its digits is 86016, while the sum is 40.

The square root of 84768142 is about 9206.9616052203. The cubic root of 84768142 is about 439.2828227200.

The spelling of 84768142 in words is "eighty-four million, seven hundred sixty-eight thousand, one hundred forty-two".