397489935 has 8 divisors (see below), whose sum is σ = 635983920. Its totient is φ = 211994624.

The previous prime is 397489919. The next prime is 397489943. The reversal of 397489935 is 539984793.

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

It is a cyclic number.

It is not a de Polignac number, because 397489935 - 2⁴ = 397489919 is a prime.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 13249650 + ... + 13249679.

It is an arithmetic number, because the mean of its divisors is an integer number (79497990).

Almost surely, 2^397489935 is an apocalyptic number.

397489935 is a deficient number, since it is larger than the sum of its proper divisors (238493985).

397489935 is a wasteful number, since it uses less digits than its factorization.

397489935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26499337.

The product of its digits is 7348320, while the sum is 57.

The square root of 397489935 is about 19937.1496207457. The cubic root of 397489935 is about 735.2618716093.

The spelling of 397489935 in words is "three hundred ninety-seven million, four hundred eighty-nine thousand, nine hundred thirty-five".