6407223205 has 4 divisors (see below), whose sum is σ = 7688667852. Its totient is φ = 5125778560.

The previous prime is 6407223191. The next prime is 6407223227. The reversal of 6407223205 is 5023227046.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4717766596 + 1689456609 = 68686^2 + 41103^2 .

It is not a de Polignac number, because 6407223205 - 2¹⁵ = 6407190437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640722316 + ... + 640722325.

It is an arithmetic number, because the mean of its divisors is an integer number (1922166963).

Almost surely, 2^6407223205 is an apocalyptic number.

It is an amenable number.

6407223205 is a deficient number, since it is larger than the sum of its proper divisors (1281444647).

6407223205 is a wasteful number, since it uses less digits than its factorization.

6407223205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281444646.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 6407223205 is about 80045.1323004716. The cubic root of 6407223205 is about 1857.3337530779. Note that the first 3 decimals are identical.

The spelling of 6407223205 in words is "six billion, four hundred seven million, two hundred twenty-three thousand, two hundred five".