396829329 has 16 divisors (see below), whose sum is σ = 585208512. Its totient is φ = 237601728.

The previous prime is 396829313. The next prime is 396829333. The reversal of 396829329 is 923928693.

It is not a de Polignac number, because 396829329 - 2⁴ = 396829313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396829229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136059 + ... + 138944.

It is an arithmetic number, because the mean of its divisors is an integer number (36575532).

Almost surely, 2^396829329 is an apocalyptic number.

396829329 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

396829329 is a deficient number, since it is larger than the sum of its proper divisors (188379183).

396829329 is a wasteful number, since it uses less digits than its factorization.

396829329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275056.

The product of its digits is 1259712, while the sum is 51.

The square root of 396829329 is about 19920.5755187946. The cubic root of 396829329 is about 734.8543244080.

The spelling of 396829329 in words is "three hundred ninety-six million, eight hundred twenty-nine thousand, three hundred twenty-nine".