84040687 has 8 divisors (see below), whose sum is σ = 85413536. Its totient is φ = 82678752.

The previous prime is 84040657. The next prime is 84040709. The reversal of 84040687 is 78604048.

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 84040687 - 2²³ = 75652079 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 (84040657) 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, 13573 + ... + 18769.

It is an arithmetic number, because the mean of its divisors is an integer number (10676692).

Almost surely, 2^84040687 is an apocalyptic number.

84040687 is a deficient number, since it is larger than the sum of its proper divisors (1372849).

84040687 is a wasteful number, since it uses less digits than its factorization.

84040687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 84040687 is about 9167.3707790184. The cubic root of 84040687 is about 438.0226126924.

The spelling of 84040687 in words is "eighty-four million, forty thousand, six hundred eighty-seven".