87854111 has 2 divisors, whose sum is σ = 87854112. Its totient is φ = 87854110.

The previous prime is 87854101. The next prime is 87854131. The reversal of 87854111 is 11145878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87854111 - 2¹⁸ = 87591967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87854101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43927055 + 43927056.

It is an arithmetic number, because the mean of its divisors is an integer number (43927056).

Almost surely, 2^87854111 is an apocalyptic number.

87854111 is a deficient number, since it is larger than the sum of its proper divisors (1).

87854111 is an equidigital number, since it uses as much as digits as its factorization.

87854111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 35.

The square root of 87854111 is about 9373.0523843623. The cubic root of 87854111 is about 444.5500834977.

Adding to 87854111 its reverse (11145878), we get a palindrome (98999989).

The spelling of 87854111 in words is "eighty-seven million, eight hundred fifty-four thousand, one hundred eleven".