397028097 has 6 divisors (see below), whose sum is σ = 573485042. Its totient is φ = 264685392.

The previous prime is 397028053. The next prime is 397028111. The reversal of 397028097 is 790820793.

It can be written as a sum of positive squares in only one way, i.e., 384003216 + 13024881 = 19596^2 + 3609^2 .

It is not a de Polignac number, because 397028097 - 2⁶ = 397028033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397028017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22057108 + ... + 22057125.

Almost surely, 2^397028097 is an apocalyptic number.

It is an amenable number.

397028097 is a deficient number, since it is larger than the sum of its proper divisors (176456945).

397028097 is a wasteful number, since it uses less digits than its factorization.

397028097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44114239 (or 44114236 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 397028097 is about 19925.5639067004. The cubic root of 397028097 is about 734.9769977530.

The spelling of 397028097 in words is "three hundred ninety-seven million, twenty-eight thousand, ninety-seven".