397483969 has 3 divisors (see below), whose sum is σ = 397503907. Its totient is φ = 397464032.

The previous prime is 397483963. The next prime is 397484011. The reversal of 397483969 is 969384793.

The square root of 397483969 is 19937.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 70308225 + 327175744 = 8385^2 + 18088^2 .

It is a de Polignac number, because none of the positive numbers 2^k-397483969 is a prime.

It is a super-2 number, since 2×397483969² = 315987011223985922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397483963) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9969 + ... + 29905.

Almost surely, 2^397483969 is an apocalyptic number.

397483969 is the 19937-th square number.

397483969 is the 9969-th centered octagonal number.

It is an amenable number.

397483969 is a deficient number, since it is larger than the sum of its proper divisors (19938).

397483969 is an frugal number, since it uses more digits than its factorization.

397483969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39874 (or 19937 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 58.

The cubic root of 397483969 is about 735.2581930303.

The spelling of 397483969 in words is "three hundred ninety-seven million, four hundred eighty-three thousand, nine hundred sixty-nine".