397265443 has 4 divisors (see below), whose sum is σ = 397398040. Its totient is φ = 397132848.

The previous prime is 397265437. The next prime is 397265459. The reversal of 397265443 is 344562793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 397265443 - 2¹³ = 397257251 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 397265443.

It is not an unprimeable number, because it can be changed into a prime (397265543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61698 + ... + 67831.

It is an arithmetic number, because the mean of its divisors is an integer number (99349510).

Almost surely, 2^397265443 is an apocalyptic number.

397265443 is a deficient number, since it is larger than the sum of its proper divisors (132597).

397265443 is a wasteful number, since it uses less digits than its factorization.

397265443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132596.

The product of its digits is 544320, while the sum is 43.

The square root of 397265443 is about 19931.5188332450. The cubic root of 397265443 is about 735.1234266012.

The spelling of 397265443 in words is "three hundred ninety-seven million, two hundred sixty-five thousand, four hundred forty-three".