863255401 has 8 divisors (see below), whose sum is σ = 884340864. Its totient is φ = 842215920.

The previous prime is 863255387. The next prime is 863255453. The reversal of 863255401 is 104552368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 863255401 - 2⁷ = 863255273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863205401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28155 + ... + 50191.

It is an arithmetic number, because the mean of its divisors is an integer number (110542608).

Almost surely, 2^863255401 is an apocalyptic number.

It is an amenable number.

863255401 is a deficient number, since it is larger than the sum of its proper divisors (21085463).

863255401 is a wasteful number, since it uses less digits than its factorization.

863255401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22991.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 863255401 is about 29381.2082971412. The cubic root of 863255401 is about 952.1669467034.

The spelling of 863255401 in words is "eight hundred sixty-three million, two hundred fifty-five thousand, four hundred one".