397596677 has 2 divisors, whose sum is σ = 397596678. Its totient is φ = 397596676.

The previous prime is 397596649. The next prime is 397596743. The reversal of 397596677 is 776695793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309724801 + 87871876 = 17599^2 + 9374^2 .

It is a cyclic number.

It is not a de Polignac number, because 397596677 - 2⁶ = 397596613 is a prime.

It is a super-2 number, since 2×397596677² = 316166235122884658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397596637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198798338 + 198798339.

It is an arithmetic number, because the mean of its divisors is an integer number (198798339).

Almost surely, 2^397596677 is an apocalyptic number.

It is an amenable number.

397596677 is a deficient number, since it is larger than the sum of its proper divisors (1).

397596677 is an equidigital number, since it uses as much as digits as its factorization.

397596677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15002820, while the sum is 59.

The square root of 397596677 is about 19939.8264034570. The cubic root of 397596677 is about 735.3276814923.

The spelling of 397596677 in words is "three hundred ninety-seven million, five hundred ninety-six thousand, six hundred seventy-seven".