86867870 has 16 divisors (see below), whose sum is σ = 156723120. Its totient is φ = 34666944.

The previous prime is 86867839. The next prime is 86867887. The reversal of 86867870 is 7876868.

It is a happy 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, 5375 + ... + 14234.

It is an arithmetic number, because the mean of its divisors is an integer number (9795195).

Almost surely, 2^86867870 is an apocalyptic number.

86867870 is a deficient number, since it is larger than the sum of its proper divisors (69855250).

86867870 is a wasteful number, since it uses less digits than its factorization.

86867870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20059.

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 86867870 is about 9320.2934503158. The cubic root of 86867870 is about 442.8803288490.

The spelling of 86867870 in words is "eighty-six million, eight hundred sixty-seven thousand, eight hundred seventy".