397385234 has 8 divisors (see below), whose sum is σ = 631141308. Its totient is φ = 187004800.

The previous prime is 397385189. The next prime is 397385273. The reversal of 397385234 is 432583793.

It can be written as a sum of positive squares in 2 ways, for example, as 378419209 + 18966025 = 19453^2 + 4355^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5843867 + ... + 5843934.

Almost surely, 2^397385234 is an apocalyptic number.

397385234 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

397385234 is a deficient number, since it is larger than the sum of its proper divisors (233756074).

397385234 is a wasteful number, since it uses less digits than its factorization.

397385234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11687820.

The product of its digits is 544320, while the sum is 44.

The square root of 397385234 is about 19934.5236712594. The cubic root of 397385234 is about 735.1973086215.

The spelling of 397385234 in words is "three hundred ninety-seven million, three hundred eighty-five thousand, two hundred thirty-four".