863434407 has 16 divisors (see below), whose sum is σ = 1257982848. Its totient is φ = 522427680.

The previous prime is 863434399. The next prime is 863434433. The reversal of 863434407 is 704434368.

It is not a de Polignac number, because 863434407 - 2³ = 863434399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863434447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113 + ... + 41570.

It is an arithmetic number, because the mean of its divisors is an integer number (78623928).

Almost surely, 2^863434407 is an apocalyptic number.

863434407 is a deficient number, since it is larger than the sum of its proper divisors (394548441).

863434407 is a wasteful number, since it uses less digits than its factorization.

863434407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43310.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 863434407 is about 29384.2544060590. The cubic root of 863434407 is about 952.2327564342.

Subtracting from 863434407 its sum of digits (39), we obtain a palindrome (863434368).

The spelling of 863434407 in words is "eight hundred sixty-three million, four hundred thirty-four thousand, four hundred seven".