862068321 has 9 divisors (see below), whose sum is σ = 1245337041. Its totient is φ = 574653492.

The previous prime is 862068307. The next prime is 862068341. The reversal of 862068321 is 123860268.

The square root of 862068321 is 29361.

It is a perfect power (a square), and thus also a powerful number.

862068321 is a `hidden beast` number, since 8 + 620 + 6 + 8 + 3 + 21 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 862068321 - 2¹⁷ = 861937249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (862068341) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 83190 + ... + 92976.

Almost surely, 2^862068321 is an apocalyptic number.

862068321 is the 29361-st square number.

862068321 is the 14681-st centered octagonal number.

It is an amenable number.

862068321 is a deficient number, since it is larger than the sum of its proper divisors (383268720).

862068321 is an frugal number, since it uses more digits than its factorization.

862068321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19580 (or 9790 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The cubic root of 862068321 is about 951.7302984713.

Multiplying 862068321 by its sum of digits (36), we get a square (31034459556 = 176166²).

The spelling of 862068321 in words is "eight hundred sixty-two million, sixty-eight thousand, three hundred twenty-one".