397434383 has 4 divisors (see below), whose sum is σ = 401080680. Its totient is φ = 393788088.

The previous prime is 397434379. The next prime is 397434403. The reversal of 397434383 is 383434793.

It is a happy number.

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 397434383 - 2² = 397434379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397434083) 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, 1822985 + ... + 1823202.

It is an arithmetic number, because the mean of its divisors is an integer number (100270170).

Almost surely, 2^397434383 is an apocalyptic number.

397434383 is a deficient number, since it is larger than the sum of its proper divisors (3646297).

397434383 is a wasteful number, since it uses less digits than its factorization.

397434383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646296.

The product of its digits is 653184, while the sum is 44.

The square root of 397434383 is about 19935.7563939771. The cubic root of 397434383 is about 735.2276173495.

The spelling of 397434383 in words is "three hundred ninety-seven million, four hundred thirty-four thousand, three hundred eighty-three".