87858071 has 16 divisors (see below), whose sum is σ = 105960960. Its totient is φ = 71163360.

The previous prime is 87858053. The next prime is 87858097. The reversal of 87858071 is 17085878.

It is not a de Polignac number, because 87858071 - 2⁶ = 87858007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87858011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85541 + ... + 86561.

It is an arithmetic number, because the mean of its divisors is an integer number (6622560).

Almost surely, 2^87858071 is an apocalyptic number.

87858071 is a deficient number, since it is larger than the sum of its proper divisors (18102889).

87858071 is a wasteful number, since it uses less digits than its factorization.

87858071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694.

The product of its (nonzero) digits is 125440, while the sum is 44.

The square root of 87858071 is about 9373.2636258669. The cubic root of 87858071 is about 444.5567627218.

The spelling of 87858071 in words is "eighty-seven million, eight hundred fifty-eight thousand, seventy-one".