86666845 has 8 divisors (see below), whose sum is σ = 105552864. Its totient is φ = 68298384.

The previous prime is 86666831. The next prime is 86666911. The reversal of 86666845 is 54866668.

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 86666845 - 2⁷ = 86666717 is a prime.

It is a super-2 number, since 2×86666845² = 15022284044508050, which contains 22 as substring.

It is a Duffinian 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, 129019 + ... + 129688.

It is an arithmetic number, because the mean of its divisors is an integer number (13194108).

Almost surely, 2^86666845 is an apocalyptic number.

It is an amenable number.

86666845 is a deficient number, since it is larger than the sum of its proper divisors (18886019).

86666845 is a wasteful number, since it uses less digits than its factorization.

86666845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258779.

The product of its digits is 1658880, while the sum is 49.

The square root of 86666845 is about 9309.5029405441. The cubic root of 86666845 is about 442.5384349562.

The spelling of 86666845 in words is "eighty-six million, six hundred sixty-six thousand, eight hundred forty-five".