84187942 has 8 divisors (see below), whose sum is σ = 126324000. Its totient is φ = 42079944.

The previous prime is 84187931. The next prime is 84187967. The reversal of 84187942 is 24978148.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3859 + ... + 13537.

It is an arithmetic number, because the mean of its divisors is an integer number (15790500).

Almost surely, 2^84187942 is an apocalyptic number.

84187942 is a deficient number, since it is larger than the sum of its proper divisors (42136058).

84187942 is a wasteful number, since it uses less digits than its factorization.

84187942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14030.

The product of its digits is 129024, while the sum is 43.

The square root of 84187942 is about 9175.3987379296. The cubic root of 84187942 is about 438.2782959261.

The spelling of 84187942 in words is "eighty-four million, one hundred eighty-seven thousand, nine hundred forty-two".