87065838 has 48 divisors (see below), whose sum is σ = 193139856. Its totient is φ = 28339200.

The previous prime is 87065831. The next prime is 87065851. The reversal of 87065838 is 83856078.

It is a junction number, because it is equal to n+sod(n) for n = 87065793 and 87065802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87065831) 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, 150606 + ... + 151182.

It is an arithmetic number, because the mean of its divisors is an integer number (4023747).

Almost surely, 2^87065838 is an apocalyptic number.

87065838 is an abundant number, since it is smaller than the sum of its proper divisors (106074018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87065838 is a wasteful number, since it uses less digits than its factorization.

87065838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 87065838 is about 9330.9076728901. The cubic root of 87065838 is about 443.2165084353.

The spelling of 87065838 in words is "eighty-seven million, sixty-five thousand, eight hundred thirty-eight".