395129707 has 16 divisors (see below), whose sum is σ = 457062912. Its totient is φ = 334586880.

The previous prime is 395129677. The next prime is 395129711. The reversal of 395129707 is 707921593.

It is a cyclic number.

It is not a de Polignac number, because 395129707 - 2²³ = 386741099 is a prime.

It is a super-2 number, since 2×395129707² = 312254970707811698, which contains 22 as substring.

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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479698 + ... + 480520.

It is an arithmetic number, because the mean of its divisors is an integer number (28566432).

Almost surely, 2^395129707 is an apocalyptic number.

395129707 is a deficient number, since it is larger than the sum of its proper divisors (61933205).

395129707 is a wasteful number, since it uses less digits than its factorization.

395129707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 395129707 is about 19877.8697802355. The cubic root of 395129707 is about 733.8036947783.

The spelling of 395129707 in words is "three hundred ninety-five million, one hundred twenty-nine thousand, seven hundred seven".