129897327 has 8 divisors (see below), whose sum is σ = 197938816. Its totient is φ = 74227032.

The previous prime is 129897311. The next prime is 129897349. The reversal of 129897327 is 723798921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129897327 - 2⁴ = 129897311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129897377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3092773 + ... + 3092814.

It is an arithmetic number, because the mean of its divisors is an integer number (24742352).

Almost surely, 2^129897327 is an apocalyptic number.

129897327 is a deficient number, since it is larger than the sum of its proper divisors (68041489).

129897327 is an equidigital number, since it uses as much as digits as its factorization.

129897327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185597.

The product of its digits is 381024, while the sum is 48.

The square root of 129897327 is about 11397.2508527276. The cubic root of 129897327 is about 506.4463025341.

The spelling of 129897327 in words is "one hundred twenty-nine million, eight hundred ninety-seven thousand, three hundred twenty-seven".