84809154 has 16 divisors (see below), whose sum is σ = 172399680. Its totient is φ = 27806160.

The previous prime is 84809147. The next prime is 84809167. The reversal of 84809154 is 45190848.

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 7 ways as a sum of consecutive naturals, for example, 115494 + ... + 116225.

It is an arithmetic number, because the mean of its divisors is an integer number (10774980).

Almost surely, 2^84809154 is an apocalyptic number.

84809154 is an abundant number, since it is smaller than the sum of its proper divisors (87590526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84809154 is a wasteful number, since it uses less digits than its factorization.

84809154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231785.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 84809154 is about 9209.1885636032. The cubic root of 84809154 is about 439.3536550006.

The spelling of 84809154 in words is "eighty-four million, eight hundred nine thousand, one hundred fifty-four".