86360921 has 4 divisors (see below), whose sum is σ = 87577344. Its totient is φ = 85144500.

The previous prime is 86360917. The next prime is 86360951. The reversal of 86360921 is 12906368.

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 86360921 - 2² = 86360917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86360951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608105 + ... + 608246.

It is an arithmetic number, because the mean of its divisors is an integer number (21894336).

Almost surely, 2^86360921 is an apocalyptic number.

It is an amenable number.

86360921 is a deficient number, since it is larger than the sum of its proper divisors (1216423).

86360921 is a wasteful number, since it uses less digits than its factorization.

86360921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216422.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 86360921 is about 9293.0576776430. The cubic root of 86360921 is about 442.0171178099.

The spelling of 86360921 in words is "eighty-six million, three hundred sixty thousand, nine hundred twenty-one".