396153257 has 2 divisors, whose sum is σ = 396153258. Its totient is φ = 396153256.

The previous prime is 396153223. The next prime is 396153299. The reversal of 396153257 is 752351693.

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., 311310736 + 84842521 = 17644^2 + 9211^2 .

It is a cyclic number.

It is not a de Polignac number, because 396153257 - 2¹⁶ = 396087721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396153757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198076628 + 198076629.

It is an arithmetic number, because the mean of its divisors is an integer number (198076629).

Almost surely, 2^396153257 is an apocalyptic number.

It is an amenable number.

396153257 is a deficient number, since it is larger than the sum of its proper divisors (1).

396153257 is an equidigital number, since it uses as much as digits as its factorization.

396153257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 41.

The square root of 396153257 is about 19903.5990966458. The cubic root of 396153257 is about 734.4367672013.

The spelling of 396153257 in words is "three hundred ninety-six million, one hundred fifty-three thousand, two hundred fifty-seven".