406430863 has 4 divisors (see below), whose sum is σ = 419541568. Its totient is φ = 393320160.

The previous prime is 406430839. The next prime is 406430867. The reversal of 406430863 is 368034604.

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

It is a cyclic number.

It is not a de Polignac number, because 406430863 - 2⁹ = 406430351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406430867) 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, 6555306 + ... + 6555367.

It is an arithmetic number, because the mean of its divisors is an integer number (104885392).

Almost surely, 2^406430863 is an apocalyptic number.

406430863 is a deficient number, since it is larger than the sum of its proper divisors (13110705).

406430863 is a wasteful number, since it uses less digits than its factorization.

406430863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110704.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 406430863 is about 20160.1305303314. The cubic root of 406430863 is about 740.7339097033.

The spelling of 406430863 in words is "four hundred six million, four hundred thirty thousand, eight hundred sixty-three".