86450823 has 6 divisors (see below), whose sum is σ = 124873424. Its totient is φ = 57633876.

The previous prime is 86450821. The next prime is 86450857. The reversal of 86450823 is 32805468.

86450823 is a `hidden beast` number, since 8 + 645 + 0 + 8 + 2 + 3 = 666.

It is not a de Polignac number, because 86450823 - 2¹ = 86450821 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 (86450821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4802815 + ... + 4802832.

Almost surely, 2^86450823 is an apocalyptic number.

86450823 is a deficient number, since it is larger than the sum of its proper divisors (38422601).

86450823 is a wasteful number, since it uses less digits than its factorization.

86450823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9605653 (or 9605650 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 86450823 is about 9297.8934711041. The cubic root of 86450823 is about 442.1704450372.

The spelling of 86450823 in words is "eighty-six million, four hundred fifty thousand, eight hundred twenty-three".