84121886 has 8 divisors (see below), whose sum is σ = 127780320. Its totient is φ = 41528448.

The previous prime is 84121883. The next prime is 84121901. The reversal of 84121886 is 68812148.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84121883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266051 + ... + 266366.

It is an arithmetic number, because the mean of its divisors is an integer number (15972540).

Almost surely, 2^84121886 is an apocalyptic number.

84121886 is a deficient number, since it is larger than the sum of its proper divisors (43658434).

84121886 is a wasteful number, since it uses less digits than its factorization.

84121886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532498.

The product of its digits is 24576, while the sum is 38.

The square root of 84121886 is about 9171.7984059834. The cubic root of 84121886 is about 438.1636378345.

The spelling of 84121886 in words is "eighty-four million, one hundred twenty-one thousand, eight hundred eighty-six".