84214879204 has 27 divisors (see below), whose sum is σ = 151100943721. Its totient is φ = 41068820960.

The previous prime is 84214879193. The next prime is 84214879211. The reversal of 84214879204 is 40297841248.

The square root of 84214879204 is 290198.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4057944804 + 80156934400 = 63702^2 + 283120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23794467 + ... + 23798005.

Almost surely, 2^84214879204 is an apocalyptic number.

84214879204 is the 290198-th square number.

It is an amenable number.

84214879204 is a deficient number, since it is larger than the sum of its proper divisors (66886064517).

84214879204 is an frugal number, since it uses more digits than its factorization.

84214879204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164 (or 3582 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

Multiplying 84214879204 by its sum of digits (49), we get a square (4126529080996 = 2031386²).

The spelling of 84214879204 in words is "eighty-four billion, two hundred fourteen million, eight hundred seventy-nine thousand, two hundred four".