84004087 has 8 divisors (see below), whose sum is σ = 86556096. Its totient is φ = 81484032.

The previous prime is 84004033. The next prime is 84004117. The reversal of 84004087 is 78040048.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84004087 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 (84004007) 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, 2598 + ... + 13219.

It is an arithmetic number, because the mean of its divisors is an integer number (10819512).

Almost surely, 2^84004087 is an apocalyptic number.

84004087 is a deficient number, since it is larger than the sum of its proper divisors (2552009).

84004087 is a wasteful number, since it uses less digits than its factorization.

84004087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15977.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 84004087 is about 9165.3743513290. The cubic root of 84004087 is about 437.9590166890.

The spelling of 84004087 in words is "eighty-four million, four thousand, eighty-seven".