84001087 has 8 divisors (see below), whose sum is σ = 87463152. Its totient is φ = 80606400.

The previous prime is 84001061. The next prime is 84001111. The reversal of 84001087 is 78010048.

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 84001087 - 2¹⁵ = 83968319 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 (84001187) 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, 14293 + ... + 19294.

It is an arithmetic number, because the mean of its divisors is an integer number (10932894).

Almost surely, 2^84001087 is an apocalyptic number.

84001087 is a deficient number, since it is larger than the sum of its proper divisors (3462065).

84001087 is a wasteful number, since it uses less digits than its factorization.

84001087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33689.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 84001087 is about 9165.2106904315. The cubic root of 84001087 is about 437.9538030827.

The spelling of 84001087 in words is "eighty-four million, one thousand, eighty-seven".