399527 has 2 divisors, whose sum is σ = 399528. Its totient is φ = 399526.

The previous prime is 399523. The next prime is 399541. The reversal of 399527 is 725993.

It is a weak prime.

It is an emirp because it is prime and its reverse (725993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 399527 - 2² = 399523 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (399523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199763 + 199764.

It is an arithmetic number, because the mean of its divisors is an integer number (199764).

2³⁹⁹⁵²⁷ is an apocalyptic number.

399527 is a deficient number, since it is larger than the sum of its proper divisors (1).

399527 is an equidigital number, since it uses as much as digits as its factorization.

399527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 35.

The square root of 399527 is about 632.0814820891. The cubic root of 399527 is about 73.6515760694.

The spelling of 399527 in words is "three hundred ninety-nine thousand, five hundred twenty-seven".