86867858 has 32 divisors (see below), whose sum is σ = 172015488. Its totient is φ = 31852800.

The previous prime is 86867839. The next prime is 86867887. The reversal of 86867858 is 85876868.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13973 + ... + 19208.

It is an arithmetic number, because the mean of its divisors is an integer number (5375484).

Almost surely, 2^86867858 is an apocalyptic number.

86867858 is a deficient number, since it is larger than the sum of its proper divisors (85147630).

86867858 is a wasteful number, since it uses less digits than its factorization.

86867858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33218.

The product of its digits is 5160960, while the sum is 56.

The square root of 86867858 is about 9320.2928065592. The cubic root of 86867858 is about 442.8803084557.

The spelling of 86867858 in words is "eighty-six million, eight hundred sixty-seven thousand, eight hundred fifty-eight".