397249127 has 8 divisors (see below), whose sum is σ = 437199120. Its totient is φ = 357938560.

The previous prime is 397249117. The next prime is 397249129. The reversal of 397249127 is 721942793.

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 397249127 - 2⁶ = 397249063 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 (397249129) by changing a digit.

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, 158552 + ... + 161037.

It is an arithmetic number, because the mean of its divisors is an integer number (54649890).

Almost surely, 2^397249127 is an apocalyptic number.

397249127 is a deficient number, since it is larger than the sum of its proper divisors (39949993).

397249127 is a wasteful number, since it uses less digits than its factorization.

397249127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319713.

The product of its digits is 190512, while the sum is 44.

The square root of 397249127 is about 19931.1095275702. The cubic root of 397249127 is about 735.1133624336.

The spelling of 397249127 in words is "three hundred ninety-seven million, two hundred forty-nine thousand, one hundred twenty-seven".