396697529 has 2 divisors, whose sum is σ = 396697530. Its totient is φ = 396697528.

The previous prime is 396697507. The next prime is 396697541. The reversal of 396697529 is 925796693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325261225 + 71436304 = 18035^2 + 8452^2 .

It is a cyclic number.

It is not a de Polignac number, because 396697529 - 2¹² = 396693433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396697589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198348764 + 198348765.

It is an arithmetic number, because the mean of its divisors is an integer number (198348765).

Almost surely, 2^396697529 is an apocalyptic number.

It is an amenable number.

396697529 is a deficient number, since it is larger than the sum of its proper divisors (1).

396697529 is an equidigital number, since it uses as much as digits as its factorization.

396697529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 56.

The square root of 396697529 is about 19917.2671067092. The cubic root of 396697529 is about 734.7729590135.

The spelling of 396697529 in words is "three hundred ninety-six million, six hundred ninety-seven thousand, five hundred twenty-nine".