397863763 has 8 divisors (see below), whose sum is σ = 434520576. Its totient is φ = 361288200.

The previous prime is 397863721. The next prime is 397863769. The reversal of 397863763 is 367368793.

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 397863763 - 2¹³ = 397855571 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 397863763.

It is not an unprimeable number, because it can be changed into a prime (397863769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9831 + ... + 29872.

It is an arithmetic number, because the mean of its divisors is an integer number (54315072).

Almost surely, 2^397863763 is an apocalyptic number.

397863763 is a deficient number, since it is larger than the sum of its proper divisors (36656813).

397863763 is a wasteful number, since it uses less digits than its factorization.

397863763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40625.

The product of its digits is 3429216, while the sum is 52.

The square root of 397863763 is about 19946.5225791364. The cubic root of 397863763 is about 735.4922970274.

The spelling of 397863763 in words is "three hundred ninety-seven million, eight hundred sixty-three thousand, seven hundred sixty-three".