397683363 has 144 divisors (see below), whose sum is σ = 766036224. Its totient is φ = 180956160.

The previous prime is 397683353. The next prime is 397683367. The reversal of 397683363 is 363386793.

It is a happy number.

It is a Cunningham number, because it is equal to 19942²-1.

It is not a de Polignac number, because 397683363 - 2⁴ = 397683347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397683367) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 10748181 + ... + 10748217.

It is an arithmetic number, because the mean of its divisors is an integer number (5319696).

Almost surely, 2^397683363 is an apocalyptic number.

397683363 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

397683363 is a deficient number, since it is larger than the sum of its proper divisors (368352861).

397683363 is a wasteful number, since it uses less digits than its factorization.

397683363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 98 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 48.

The square root of 397683363 is about 19941.9999749273. Note that the first 4 decimals coincide. The cubic root of 397683363 is about 735.3811175388.

The spelling of 397683363 in words is "three hundred ninety-seven million, six hundred eighty-three thousand, three hundred sixty-three".