84440587 has 8 divisors (see below), whose sum is σ = 105276672. Its totient is φ = 65797800.

The previous prime is 84440563. The next prime is 84440593. The reversal of 84440587 is 78504448.

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-84440587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84440507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548239 + ... + 548392.

It is an arithmetic number, because the mean of its divisors is an integer number (13159584).

Almost surely, 2^84440587 is an apocalyptic number.

84440587 is a deficient number, since it is larger than the sum of its proper divisors (20836085).

84440587 is a wasteful number, since it uses less digits than its factorization.

84440587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096649.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 84440587 is about 9189.1559460051. The cubic root of 84440587 is about 438.7162772543.

The spelling of 84440587 in words is "eighty-four million, four hundred forty thousand, five hundred eighty-seven".