84214784 has 22 divisors (see below), whose sum is σ = 168349374. Its totient is φ = 42106880.

The previous prime is 84214777. The next prime is 84214813. The reversal of 84214784 is 48741248.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69222400 + 14992384 = 8320^2 + 3872^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40097 + ... + 42144.

Almost surely, 2^84214784 is an apocalyptic number.

It is an amenable number.

84214784 is a deficient number, since it is larger than the sum of its proper divisors (84134590).

84214784 is an equidigital number, since it uses as much as digits as its factorization.

84214784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82261 (or 82243 counting only the distinct ones).

The product of its digits is 57344, while the sum is 38.

The square root of 84214784 is about 9176.8613370803. The cubic root of 84214784 is about 438.3248703550.

The spelling of 84214784 in words is "eighty-four million, two hundred fourteen thousand, seven hundred eighty-four".