397267277 has 8 divisors (see below), whose sum is σ = 441560160. Its totient is φ = 354337360.

The previous prime is 397267249. The next prime is 397267279. The reversal of 397267277 is 772762793.

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 397267277 - 2⁸ = 397267021 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 (397267279) 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, 340127 + ... + 341292.

It is an arithmetic number, because the mean of its divisors is an integer number (55195020).

Almost surely, 2^397267277 is an apocalyptic number.

It is an amenable number.

397267277 is a deficient number, since it is larger than the sum of its proper divisors (44292883).

397267277 is a wasteful number, since it uses less digits than its factorization.

397267277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681483.

The product of its digits is 1555848, while the sum is 50.

The square root of 397267277 is about 19931.5648407244. The cubic root of 397267277 is about 735.1245578467.

The spelling of 397267277 in words is "three hundred ninety-seven million, two hundred sixty-seven thousand, two hundred seventy-seven".