63406843 has 4 divisors (see below), whose sum is σ = 63739008. Its totient is φ = 63074680.

The previous prime is 63406841. The next prime is 63406943. The reversal of 63406843 is 34860436.

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 63406843 - 2¹ = 63406841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63406799 and 63406808.

It is not an unprimeable number, because it can be changed into a prime (63406841) 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, 165796 + ... + 166177.

It is an arithmetic number, because the mean of its divisors is an integer number (15934752).

Almost surely, 2^63406843 is an apocalyptic number.

63406843 is a deficient number, since it is larger than the sum of its proper divisors (332165).

63406843 is a wasteful number, since it uses less digits than its factorization.

63406843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332164.

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

The square root of 63406843 is about 7962.8413898558. The cubic root of 63406843 is about 398.7604188143.

The spelling of 63406843 in words is "sixty-three million, four hundred six thousand, eight hundred forty-three".