397749599 has 8 divisors (see below), whose sum is σ = 429874032. Its totient is φ = 365843520.

The previous prime is 397749589. The next prime is 397749601. The reversal of 397749599 is 995947793.

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 397749599 - 2⁸ = 397749343 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 (397749589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50789 + ... + 58094.

It is an arithmetic number, because the mean of its divisors is an integer number (53734254).

Almost surely, 2^397749599 is an apocalyptic number.

397749599 is a deficient number, since it is larger than the sum of its proper divisors (32124433).

397749599 is a wasteful number, since it uses less digits than its factorization.

397749599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109177.

The product of its digits is 19289340, while the sum is 62.

The square root of 397749599 is about 19943.6606218618. The cubic root of 397749599 is about 735.4219423123.

The spelling of 397749599 in words is "three hundred ninety-seven million, seven hundred forty-nine thousand, five hundred ninety-nine".