397340673 has 8 divisors (see below), whose sum is σ = 557671200. Its totient is φ = 250951968.

The previous prime is 397340659. The next prime is 397340693. The reversal of 397340673 is 376043793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 397340673 - 2¹⁷ = 397209601 is a prime.

It is a super-2 number, since 2×397340673² = 315759220840185858, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (397340653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3485388 + ... + 3485501.

It is an arithmetic number, because the mean of its divisors is an integer number (69708900).

Almost surely, 2^397340673 is an apocalyptic number.

It is an amenable number.

397340673 is a deficient number, since it is larger than the sum of its proper divisors (160330527).

397340673 is a wasteful number, since it uses less digits than its factorization.

397340673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970911.

The product of its (nonzero) digits is 285768, while the sum is 42.

The square root of 397340673 is about 19933.4059558320. The cubic root of 397340673 is about 735.1698270167.

The spelling of 397340673 in words is "three hundred ninety-seven million, three hundred forty thousand, six hundred seventy-three".