84954778 has 8 divisors (see below), whose sum is σ = 132972768. Its totient is φ = 40630524.

The previous prime is 84954769. The next prime is 84954823. The reversal of 84954778 is 87745948.

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, 923376 + ... + 923467.

It is an arithmetic number, because the mean of its divisors is an integer number (16621596).

Almost surely, 2^84954778 is an apocalyptic number.

84954778 is a deficient number, since it is larger than the sum of its proper divisors (48017990).

84954778 is a wasteful number, since it uses less digits than its factorization.

84954778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846868.

The product of its digits is 2257920, while the sum is 52.

The square root of 84954778 is about 9217.0916237173. The cubic root of 84954778 is about 439.6049794891.

The spelling of 84954778 in words is "eighty-four million, nine hundred fifty-four thousand, seven hundred seventy-eight".