408064863 has 4 divisors (see below), whose sum is σ = 544086488. Its totient is φ = 272043240.

The previous prime is 408064847. The next prime is 408064901. The reversal of 408064863 is 368460804.

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

It is not a de Polignac number, because 408064863 - 2⁴ = 408064847 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 (408084863) 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, 68010808 + ... + 68010813.

It is an arithmetic number, because the mean of its divisors is an integer number (136021622).

Almost surely, 2^408064863 is an apocalyptic number.

408064863 is a deficient number, since it is larger than the sum of its proper divisors (136021625).

408064863 is a wasteful number, since it uses less digits than its factorization.

408064863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136021624.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 408064863 is about 20200.6154114175. The cubic root of 408064863 is about 741.7252556726.

The spelling of 408064863 in words is "four hundred eight million, sixty-four thousand, eight hundred sixty-three".