84541887 has 24 divisors (see below), whose sum is σ = 133311360. Its totient is φ = 53391960.

The previous prime is 84541883. The next prime is 84541889. The reversal of 84541887 is 78814548.

It is not a de Polignac number, because 84541887 - 2² = 84541883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84541883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4539 + ... + 13772.

It is an arithmetic number, because the mean of its divisors is an integer number (5554640).

Almost surely, 2^84541887 is an apocalyptic number.

84541887 is a deficient number, since it is larger than the sum of its proper divisors (48769473).

84541887 is a wasteful number, since it uses less digits than its factorization.

84541887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18345 (or 18333 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 84541887 is about 9194.6662255897. Note that the first 3 decimals coincide. The cubic root of 84541887 is about 438.8916439453.

The spelling of 84541887 in words is "eighty-four million, five hundred forty-one thousand, eight hundred eighty-seven".