86749873 has 8 divisors (see below), whose sum is σ = 102341120. Its totient is φ = 71958240.

The previous prime is 86749853. The next prime is 86749931. The reversal of 86749873 is 37894768.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86749873 - 2⁵ = 86749841 is a prime.

It is a super-2 number, since 2×86749873² = 15051080931032258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86749873.

It is not an unprimeable number, because it can be changed into a prime (86749853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199668 + ... + 200101.

It is an arithmetic number, because the mean of its divisors is an integer number (12792640).

Almost surely, 2^86749873 is an apocalyptic number.

It is an amenable number.

86749873 is a deficient number, since it is larger than the sum of its proper divisors (15591247).

86749873 is a wasteful number, since it uses less digits than its factorization.

86749873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399807.

The product of its digits is 2032128, while the sum is 52.

The square root of 86749873 is about 9313.9611873789. The cubic root of 86749873 is about 442.6797091038.

The spelling of 86749873 in words is "eighty-six million, seven hundred forty-nine thousand, eight hundred seventy-three".