397097277 has 8 divisors (see below), whose sum is σ = 552483264. Its totient is φ = 253221408.

The previous prime is 397097269. The next prime is 397097299. The reversal of 397097277 is 772790793.

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

It is not a de Polignac number, because 397097277 - 2³ = 397097269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397097257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2877448 + ... + 2877585.

It is an arithmetic number, because the mean of its divisors is an integer number (69060408).

Almost surely, 2^397097277 is an apocalyptic number.

It is an amenable number.

397097277 is a deficient number, since it is larger than the sum of its proper divisors (155385987).

397097277 is a wasteful number, since it uses less digits than its factorization.

397097277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755059.

The product of its (nonzero) digits is 1166886, while the sum is 51.

The square root of 397097277 is about 19927.2997919939. The cubic root of 397097277 is about 735.0196838636.

The spelling of 397097277 in words is "three hundred ninety-seven million, ninety-seven thousand, two hundred seventy-seven".