84779842 has 8 divisors (see below), whose sum is σ = 145336896. Its totient is φ = 36334212.

The previous prime is 84779837. The next prime is 84779879. The reversal of 84779842 is 24897748.

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

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, 3027838 + ... + 3027865.

It is an arithmetic number, because the mean of its divisors is an integer number (18167112).

Almost surely, 2^84779842 is an apocalyptic number.

84779842 is a deficient number, since it is larger than the sum of its proper divisors (60557054).

84779842 is a wasteful number, since it uses less digits than its factorization.

84779842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055712.

The product of its digits is 903168, while the sum is 49.

The square root of 84779842 is about 9207.5969720661. The cubic root of 84779842 is about 439.3030322487.

The spelling of 84779842 in words is "eighty-four million, seven hundred seventy-nine thousand, eight hundred forty-two".