399627 has 24 divisors (see below), whose sum is σ = 640080. Its totient is φ = 246240.

The previous prime is 399617. The next prime is 399643. The reversal of 399627 is 726993.

It is not a de Polignac number, because 399627 - 2⁷ = 399499 is a prime.

Its product of digits (20412) is a multiple of the sum of its prime divisors (63).

It is a junction number, because it is equal to n+sod(n) for n = 399591 and 399600.

It is not an unprimeable number, because it can be changed into a prime (399617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9727 + ... + 9767.

It is an arithmetic number, because the mean of its divisors is an integer number (26670).

2³⁹⁹⁶²⁷ is an apocalyptic number.

399627 is a deficient number, since it is larger than the sum of its proper divisors (240453).

399627 is a wasteful number, since it uses less digits than its factorization.

399627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 63 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 399627 is about 632.1605808653. The cubic root of 399627 is about 73.6577204545.

The spelling of 399627 in words is "three hundred ninety-nine thousand, six hundred twenty-seven".