86848921 has 4 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 86606644.

The previous prime is 86848919. The next prime is 86848969. The reversal of 86848921 is 12984868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86848921 - 2¹ = 86848919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86848901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120601 + ... + 121318.

It is an arithmetic number, because the mean of its divisors is an integer number (21772800).

Almost surely, 2^86848921 is an apocalyptic number.

It is an amenable number.

86848921 is a deficient number, since it is larger than the sum of its proper divisors (242279).

86848921 is a wasteful number, since it uses less digits than its factorization.

86848921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242278.

The product of its digits is 221184, while the sum is 46.

The square root of 86848921 is about 9319.2768496273. The cubic root of 86848921 is about 442.8481238092.

The spelling of 86848921 in words is "eighty-six million, eight hundred forty-eight thousand, nine hundred twenty-one".