863398473 has 24 divisors (see below), whose sum is σ = 1342122912. Its totient is φ = 492274944.

The previous prime is 863398457. The next prime is 863398477. The reversal of 863398473 is 374893368.

It is not a de Polignac number, because 863398473 - 2⁴ = 863398457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (863398477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62361 + ... + 74937.

It is an arithmetic number, because the mean of its divisors is an integer number (55921788).

Almost surely, 2^863398473 is an apocalyptic number.

It is an amenable number.

863398473 is a deficient number, since it is larger than the sum of its proper divisors (478724439).

863398473 is a wasteful number, since it uses less digits than its factorization.

863398473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13061 (or 13054 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The square root of 863398473 is about 29383.6429497773. The cubic root of 863398473 is about 952.2195463952.

The spelling of 863398473 in words is "eight hundred sixty-three million, three hundred ninety-eight thousand, four hundred seventy-three".