397545794 has 8 divisors (see below), whose sum is σ = 596414208. Its totient is φ = 198741060.

The previous prime is 397545791. The next prime is 397545817. The reversal of 397545794 is 497545793.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (397545791) 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, 5399 + ... + 28709.

It is an arithmetic number, because the mean of its divisors is an integer number (74551776).

Almost surely, 2^397545794 is an apocalyptic number.

397545794 is a deficient number, since it is larger than the sum of its proper divisors (198868414).

397545794 is a wasteful number, since it uses less digits than its factorization.

397545794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31840.

The product of its digits is 4762800, while the sum is 53.

The square root of 397545794 is about 19938.5504488165. The cubic root of 397545794 is about 735.2963119523.

Subtracting 397545794 from its reverse (497545793), we obtain a palindrome (99999999).

The spelling of 397545794 in words is "three hundred ninety-seven million, five hundred forty-five thousand, seven hundred ninety-four".