396169393 has 2 divisors, whose sum is σ = 396169394. Its totient is φ = 396169392.

The previous prime is 396169373. The next prime is 396169427. The reversal of 396169393 is 393961693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395890609 + 278784 = 19897^2 + 528^2 .

It is a cyclic number.

It is not a de Polignac number, because 396169393 - 2²¹ = 394072241 is a prime.

It is not a weakly prime, because it can be changed into another prime (396169373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198084696 + 198084697.

It is an arithmetic number, because the mean of its divisors is an integer number (198084697).

Almost surely, 2^396169393 is an apocalyptic number.

It is an amenable number.

396169393 is a deficient number, since it is larger than the sum of its proper divisors (1).

396169393 is an equidigital number, since it uses as much as digits as its factorization.

396169393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 708588, while the sum is 49.

The square root of 396169393 is about 19904.0044463419. The cubic root of 396169393 is about 734.4467386879.

The spelling of 396169393 in words is "three hundred ninety-six million, one hundred sixty-nine thousand, three hundred ninety-three".