8464820231 has 4 divisors (see below), whose sum is σ = 9674080272. Its totient is φ = 7255560192.

The previous prime is 8464820219. The next prime is 8464820261. The reversal of 8464820231 is 1320284648.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8464820231 - 2¹⁸ = 8464558087 is a prime.

It is a super-2 number, since 2×8464820231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8464820261) 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, 604630010 + ... + 604630023.

It is an arithmetic number, because the mean of its divisors is an integer number (2418520068).

Almost surely, 2^8464820231 is an apocalyptic number.

8464820231 is a deficient number, since it is larger than the sum of its proper divisors (1209260041).

8464820231 is a wasteful number, since it uses less digits than its factorization.

8464820231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209260040.

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 8464820231 is about 92004.4576691804. The cubic root of 8464820231 is about 2038.0081345020.

The spelling of 8464820231 in words is "eight billion, four hundred sixty-four million, eight hundred twenty thousand, two hundred thirty-one".