84871887 has 8 divisors (see below), whose sum is σ = 114026880. Its totient is φ = 56149080.

The previous prime is 84871883. The next prime is 84871889. The reversal of 84871887 is 78817848.

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

It is not a de Polignac number, because 84871887 - 2² = 84871883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84871883) 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, 107587 + ... + 108372.

It is an arithmetic number, because the mean of its divisors is an integer number (14253360).

Almost surely, 2^84871887 is an apocalyptic number.

84871887 is a deficient number, since it is larger than the sum of its proper divisors (29154993).

84871887 is a wasteful number, since it uses less digits than its factorization.

84871887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216093.

The product of its digits is 802816, while the sum is 51.

The square root of 84871887 is about 9212.5939343922. The cubic root of 84871887 is about 439.4619576956.

It can be divided in two parts, 84871 and 887, that added together give a palindrome (85758).

The spelling of 84871887 in words is "eighty-four million, eight hundred seventy-one thousand, eight hundred eighty-seven".