397004177 has 4 divisors (see below), whose sum is σ = 397044516. Its totient is φ = 396963840.

The previous prime is 397004161. The next prime is 397004203. The reversal of 397004177 is 771400793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 771400793 = 79 ⋅9764567.

It can be written as a sum of positive squares in 2 ways, for example, as 202094656 + 194909521 = 14216^2 + 13961^2 .

It is a cyclic number.

It is not a de Polignac number, because 397004177 - 2⁴ = 397004161 is a prime.

It is a super-2 number, since 2×397004177² = 315224633110894658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397004177.

It is not an unprimeable number, because it can be changed into a prime (397004137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5393 + ... + 28689.

It is an arithmetic number, because the mean of its divisors is an integer number (99261129).

Almost surely, 2^397004177 is an apocalyptic number.

It is an amenable number.

397004177 is a deficient number, since it is larger than the sum of its proper divisors (40339).

397004177 is a wasteful number, since it uses less digits than its factorization.

397004177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40338.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 397004177 is about 19924.9636637059. The cubic root of 397004177 is about 734.9622372503.

The spelling of 397004177 in words is "three hundred ninety-seven million, four thousand, one hundred seventy-seven".