407643227 has 4 divisors (see below), whose sum is σ = 421699920. Its totient is φ = 393586536.

The previous prime is 407643217. The next prime is 407643241. The reversal of 407643227 is 722346704.

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 407643227 - 2⁸ = 407642971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407643217) 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, 7028303 + ... + 7028360.

It is an arithmetic number, because the mean of its divisors is an integer number (105424980).

Almost surely, 2^407643227 is an apocalyptic number.

407643227 is a deficient number, since it is larger than the sum of its proper divisors (14056693).

407643227 is a wasteful number, since it uses less digits than its factorization.

407643227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14056692.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 407643227 is about 20190.1764974950. The cubic root of 407643227 is about 741.4697032894.

The spelling of 407643227 in words is "four hundred seven million, six hundred forty-three thousand, two hundred twenty-seven".