396552397 has 2 divisors, whose sum is σ = 396552398. Its totient is φ = 396552396.

The previous prime is 396552389. The next prime is 396552427. The reversal of 396552397 is 793255693.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393387556 + 3164841 = 19834^2 + 1779^2 .

It is a cyclic number.

It is not a de Polignac number, because 396552397 - 2³ = 396552389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396552397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396552367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198276198 + 198276199.

It is an arithmetic number, because the mean of its divisors is an integer number (198276199).

Almost surely, 2^396552397 is an apocalyptic number.

It is an amenable number.

396552397 is a deficient number, since it is larger than the sum of its proper divisors (1).

396552397 is an equidigital number, since it uses as much as digits as its factorization.

396552397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1530900, while the sum is 49.

The square root of 396552397 is about 19913.6234020833. The cubic root of 396552397 is about 734.6833423925.

The spelling of 396552397 in words is "three hundred ninety-six million, five hundred fifty-two thousand, three hundred ninety-seven".