395129727 has 24 divisors (see below), whose sum is σ = 591692400. Its totient is φ = 253790208.

The previous prime is 395129711. The next prime is 395129737. The reversal of 395129727 is 727921593.

It is not a de Polignac number, because 395129727 - 2⁴ = 395129711 is a prime.

It is a super-2 number, since 2×395129727² = 312255002318189058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395129737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145599 + ... + 148287.

It is an arithmetic number, because the mean of its divisors is an integer number (24653850).

Almost surely, 2^395129727 is an apocalyptic number.

395129727 is a deficient number, since it is larger than the sum of its proper divisors (196562673).

395129727 is a wasteful number, since it uses less digits than its factorization.

395129727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287 (or 3284 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 395129727 is about 19877.8702833075. The cubic root of 395129727 is about 733.8037071591.

The spelling of 395129727 in words is "three hundred ninety-five million, one hundred twenty-nine thousand, seven hundred twenty-seven".