84649418 has 8 divisors (see below), whose sum is σ = 145113312. Its totient is φ = 36278316.

The previous prime is 84649399. The next prime is 84649421. The reversal of 84649418 is 81494648.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3023180 + ... + 3023207.

It is an arithmetic number, because the mean of its divisors is an integer number (18139164).

Almost surely, 2^84649418 is an apocalyptic number.

84649418 is a deficient number, since it is larger than the sum of its proper divisors (60463894).

84649418 is a wasteful number, since it uses less digits than its factorization.

84649418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046396.

The product of its digits is 221184, while the sum is 44.

The square root of 84649418 is about 9200.5118335884. The cubic root of 84649418 is about 439.0776442972.

The spelling of 84649418 in words is "eighty-four million, six hundred forty-nine thousand, four hundred eighteen".