8401863 has 4 divisors (see below), whose sum is σ = 11202488. Its totient is φ = 5601240.

The previous prime is 8401807. The next prime is 8401873. The reversal of 8401863 is 3681048.

It is a happy number.

8401863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8401863 - 2¹⁷ = 8270791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8401863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8401873) 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, 1400308 + ... + 1400313.

It is an arithmetic number, because the mean of its divisors is an integer number (2800622).

Almost surely, 2^8401863 is an apocalyptic number.

8401863 is a deficient number, since it is larger than the sum of its proper divisors (2800625).

8401863 is a wasteful number, since it uses less digits than its factorization.

8401863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800624.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 8401863 is about 2898.5967294538. The cubic root of 8401863 is about 203.2942983982.

The spelling of 8401863 in words is "eight million, four hundred one thousand, eight hundred sixty-three".