397532355 has 32 divisors (see below), whose sum is σ = 698906880. Its totient is φ = 191345280.

The previous prime is 397532353. The next prime is 397532363. The reversal of 397532355 is 553235793.

It is a happy number.

It is not a de Polignac number, because 397532355 - 2¹ = 397532353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397532353) 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 31 ways as a sum of consecutive naturals, for example, 14269 + ... + 31601.

It is an arithmetic number, because the mean of its divisors is an integer number (21840840).

Almost surely, 2^397532355 is an apocalyptic number.

397532355 is a deficient number, since it is larger than the sum of its proper divisors (301374525).

397532355 is a wasteful number, since it uses less digits than its factorization.

397532355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17491.

The product of its digits is 425250, while the sum is 42.

The square root of 397532355 is about 19938.2134355112. The cubic root of 397532355 is about 735.2880263169.

The spelling of 397532355 in words is "three hundred ninety-seven million, five hundred thirty-two thousand, three hundred fifty-five".