397268763 has 4 divisors (see below), whose sum is σ = 529691688. Its totient is φ = 264845840.

The previous prime is 397268759. The next prime is 397268791. The reversal of 397268763 is 367862793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 367862793 = 3 ⋅122620931.

It is a cyclic number.

It is not a de Polignac number, because 397268763 - 2² = 397268759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397268363) 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 3 ways as a sum of consecutive naturals, for example, 66211458 + ... + 66211463.

It is an arithmetic number, because the mean of its divisors is an integer number (132422922).

Almost surely, 2^397268763 is an apocalyptic number.

397268763 is a deficient number, since it is larger than the sum of its proper divisors (132422925).

397268763 is a wasteful number, since it uses less digits than its factorization.

397268763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132422924.

The product of its digits is 2286144, while the sum is 51.

The square root of 397268763 is about 19931.6021182443. The cubic root of 397268763 is about 735.1254744368.

The spelling of 397268763 in words is "three hundred ninety-seven million, two hundred sixty-eight thousand, seven hundred sixty-three".