84221207 has 8 divisors (see below), whose sum is σ = 96900000. Its totient is φ = 71704224.

The previous prime is 84221183. The next prime is 84221209. The reversal of 84221207 is 70212248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84221207 - 2⁸ = 84220951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84221209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39332 + ... + 41417.

It is an arithmetic number, because the mean of its divisors is an integer number (12112500).

Almost surely, 2^84221207 is an apocalyptic number.

84221207 is a deficient number, since it is larger than the sum of its proper divisors (12678793).

84221207 is a wasteful number, since it uses less digits than its factorization.

84221207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80905.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 84221207 is about 9177.2112866600. The cubic root of 84221207 is about 438.3360136442.

The spelling of 84221207 in words is "eighty-four million, two hundred twenty-one thousand, two hundred seven".