84400216 has 8 divisors (see below), whose sum is σ = 158250420. Its totient is φ = 42200104.

The previous prime is 84400207. The next prime is 84400229. The reversal of 84400216 is 61200448.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275006 + ... + 5275021.

Almost surely, 2^84400216 is an apocalyptic number.

It is an amenable number.

84400216 is a deficient number, since it is larger than the sum of its proper divisors (73850204).

84400216 is a wasteful number, since it uses less digits than its factorization.

84400216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550033 (or 10550029 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 84400216 is about 9186.9590180865. The cubic root of 84400216 is about 438.6463494356.

The spelling of 84400216 in words is "eighty-four million, four hundred thousand, two hundred sixteen".