397528559 has 8 divisors (see below), whose sum is σ = 402093120. Its totient is φ = 392980896.

The previous prime is 397528541. The next prime is 397528589. The reversal of 397528559 is 955825793.

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

It is a cyclic number.

It is not a de Polignac number, because 397528559 - 2²⁰ = 396479983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397528559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397528589) 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, 46529 + ... + 54405.

It is an arithmetic number, because the mean of its divisors is an integer number (50261640).

Almost surely, 2^397528559 is an apocalyptic number.

397528559 is a deficient number, since it is larger than the sum of its proper divisors (4564561).

397528559 is a wasteful number, since it uses less digits than its factorization.

397528559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449.

The product of its digits is 3402000, while the sum is 53.

The square root of 397528559 is about 19938.1182411982. The cubic root of 397528559 is about 735.2856859102.

The spelling of 397528559 in words is "three hundred ninety-seven million, five hundred twenty-eight thousand, five hundred fifty-nine".