399811223 has 8 divisors (see below), whose sum is σ = 457161600. Its totient is φ = 342519480.

The previous prime is 399811211. The next prime is 399811267. The reversal of 399811223 is 322118993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 399811223 - 2⁴ = 399811207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399816223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088 + ... + 28298.

It is an arithmetic number, because the mean of its divisors is an integer number (57145200).

Almost surely, 2^399811223 is an apocalyptic number.

399811223 is a deficient number, since it is larger than the sum of its proper divisors (57350377).

399811223 is a wasteful number, since it uses less digits than its factorization.

399811223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29317.

The product of its digits is 23328, while the sum is 38.

The square root of 399811223 is about 19995.2800180443. The cubic root of 399811223 is about 736.6903714200.

The spelling of 399811223 in words is "three hundred ninety-nine million, eight hundred eleven thousand, two hundred twenty-three".