86865830 has 16 divisors (see below), whose sum is σ = 158922864. Its totient is φ = 34176480.

The previous prime is 86865803. The next prime is 86865893. The reversal of 86865830 is 3856868.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70592 + ... + 71811.

It is an arithmetic number, because the mean of its divisors is an integer number (9932679).

Almost surely, 2^86865830 is an apocalyptic number.

86865830 is a deficient number, since it is larger than the sum of its proper divisors (72057034).

86865830 is a wasteful number, since it uses less digits than its factorization.

86865830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142471.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 86865830 is about 9320.1840110590. The cubic root of 86865830 is about 442.8768619632.

The spelling of 86865830 in words is "eighty-six million, eight hundred sixty-five thousand, eight hundred thirty".