397717406343 has 24 divisors (see below), whose sum is σ = 608830940400. Its totient is φ = 256591858320.

The previous prime is 397717406329. The next prime is 397717406363. The reversal of 397717406343 is 343604717793.

It is not a de Polignac number, because 397717406343 - 2¹³ = 397717398151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397717406343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397717406323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7638088 + ... + 7689981.

It is an arithmetic number, because the mean of its divisors is an integer number (25367955850).

Almost surely, 2^397717406343 is an apocalyptic number.

397717406343 is a deficient number, since it is larger than the sum of its proper divisors (211113534057).

397717406343 is a wasteful number, since it uses less digits than its factorization.

397717406343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15328140 (or 15328103 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 54.

The spelling of 397717406343 in words is "three hundred ninety-seven billion, seven hundred seventeen million, four hundred six thousand, three hundred forty-three".