397186063 has 4 divisors (see below), whose sum is σ = 397856448. Its totient is φ = 396515680.

The previous prime is 397186039. The next prime is 397186091. The reversal of 397186063 is 360681793.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397186063 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 (397186093) 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, 334303 + ... + 335488.

It is an arithmetic number, because the mean of its divisors is an integer number (99464112).

Almost surely, 2^397186063 is an apocalyptic number.

397186063 is a deficient number, since it is larger than the sum of its proper divisors (670385).

397186063 is an equidigital number, since it uses as much as digits as its factorization.

397186063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670384.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 397186063 is about 19929.5274153704. The cubic root of 397186063 is about 735.0744601937.

The spelling of 397186063 in words is "three hundred ninety-seven million, one hundred eighty-six thousand, sixty-three".