397828299 has 16 divisors (see below), whose sum is σ = 579703680. Its totient is φ = 240672960.

The previous prime is 397828297. The next prime is 397828307. The reversal of 397828299 is 992828793.

It is not a de Polignac number, because 397828299 - 2¹ = 397828297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397828297) 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, 8184 + ... + 29370.

It is an arithmetic number, because the mean of its divisors is an integer number (36231480).

Almost surely, 2^397828299 is an apocalyptic number.

397828299 is a deficient number, since it is larger than the sum of its proper divisors (181875381).

397828299 is a wasteful number, since it uses less digits than its factorization.

397828299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21770.

The product of its digits is 3919104, while the sum is 57.

The square root of 397828299 is about 19945.6335823157. The cubic root of 397828299 is about 735.4704434213.

The spelling of 397828299 in words is "three hundred ninety-seven million, eight hundred twenty-eight thousand, two hundred ninety-nine".