397825652 has 24 divisors (see below), whose sum is σ = 808698240. Its totient is φ = 167700960.

The previous prime is 397825651. The next prime is 397825663. The reversal of 397825652 is 256528793.

It is a junction number, because it is equal to n+sod(n) for n = 397825597 and 397825606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397825651) 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 7 ways as a sum of consecutive naturals, for example, 114752 + ... + 118167.

It is an arithmetic number, because the mean of its divisors is an integer number (33695760).

Almost surely, 2^397825652 is an apocalyptic number.

It is an amenable number.

397825652 is an abundant number, since it is smaller than the sum of its proper divisors (410872588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397825652 is a wasteful number, since it uses less digits than its factorization.

397825652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232991 (or 232989 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 397825652 is about 19945.5672268301. The cubic root of 397825652 is about 735.4688122364.

The spelling of 397825652 in words is "three hundred ninety-seven million, eight hundred twenty-five thousand, six hundred fifty-two".