84213207 has 24 divisors (see below), whose sum is σ = 131804400. Its totient is φ = 51811344.

The previous prime is 84213203. The next prime is 84213209. The reversal of 84213207 is 70231248.

It is not a de Polignac number, because 84213207 - 2² = 84213203 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84213203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17644 + ... + 21902.

It is an arithmetic number, because the mean of its divisors is an integer number (5491850).

Almost surely, 2^84213207 is an apocalyptic number.

84213207 is a deficient number, since it is larger than the sum of its proper divisors (47591193).

84213207 is a wasteful number, since it uses less digits than its factorization.

84213207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304 (or 4275 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 84213207 is about 9176.7754140548. The cubic root of 84213207 is about 438.3221343246.

It can be divided in two parts, 8421 and 3207, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 84213207 in words is "eighty-four million, two hundred thirteen thousand, two hundred seven".