863328451 has 4 divisors (see below), whose sum is σ = 864671752. Its totient is φ = 861985152.

The previous prime is 863328413. The next prime is 863328461. The reversal of 863328451 is 154823368.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-863328451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863328461) 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, 670686 + ... + 671971.

It is an arithmetic number, because the mean of its divisors is an integer number (216167938).

Almost surely, 2^863328451 is an apocalyptic number.

863328451 is a deficient number, since it is larger than the sum of its proper divisors (1343301).

863328451 is a wasteful number, since it uses less digits than its factorization.

863328451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343300.

The product of its digits is 138240, while the sum is 40.

The square root of 863328451 is about 29382.4514123652. The cubic root of 863328451 is about 952.1938038898.

The spelling of 863328451 in words is "eight hundred sixty-three million, three hundred twenty-eight thousand, four hundred fifty-one".