84076042 has 4 divisors (see below), whose sum is σ = 126114066. Its totient is φ = 42038020.

The previous prime is 84076037. The next prime is 84076079. The reversal of 84076042 is 24067048.

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

It can be written as a sum of positive squares in only one way, i.e., 83740801 + 335241 = 9151^2 + 579^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84075995 and 84076013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21019009 + ... + 21019012.

Almost surely, 2^84076042 is an apocalyptic number.

84076042 is a deficient number, since it is larger than the sum of its proper divisors (42038024).

84076042 is a wasteful number, since it uses less digits than its factorization.

84076042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42038023.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 84076042 is about 9169.2988826845. The cubic root of 84076042 is about 438.0840278589.

The spelling of 84076042 in words is "eighty-four million, seventy-six thousand, forty-two".