397326253 has 2 divisors, whose sum is σ = 397326254. Its totient is φ = 397326252.

The previous prime is 397326247. The next prime is 397326283. The reversal of 397326253 is 352623793.

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., 397324489 + 1764 = 19933^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 397326253 - 2¹⁷ = 397195181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397326283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198663126 + 198663127.

It is an arithmetic number, because the mean of its divisors is an integer number (198663127).

Almost surely, 2^397326253 is an apocalyptic number.

It is an amenable number.

397326253 is a deficient number, since it is larger than the sum of its proper divisors (1).

397326253 is an equidigital number, since it uses as much as digits as its factorization.

397326253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 40.

The square root of 397326253 is about 19933.0442481825. The cubic root of 397326253 is about 735.1609334921.

The spelling of 397326253 in words is "three hundred ninety-seven million, three hundred twenty-six thousand, two hundred fifty-three".