86880821 has 8 divisors (see below), whose sum is σ = 91679040. Its totient is φ = 82167712.

The previous prime is 86880797. The next prime is 86880853. The reversal of 86880821 is 12808868.

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 86880821 - 2¹⁸ = 86618677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86880721) 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, 19175 + ... + 23268.

It is an arithmetic number, because the mean of its divisors is an integer number (11459880).

Almost surely, 2^86880821 is an apocalyptic number.

It is an amenable number.

86880821 is a deficient number, since it is larger than the sum of its proper divisors (4798219).

86880821 is a wasteful number, since it uses less digits than its factorization.

86880821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42555.

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 86880821 is about 9320.9881986837. The cubic root of 86880821 is about 442.9023372092.

The spelling of 86880821 in words is "eighty-six million, eight hundred eighty thousand, eight hundred twenty-one".