396373949 has 2 divisors, whose sum is σ = 396373950. Its totient is φ = 396373948.

The previous prime is 396373919. The next prime is 396373951. The reversal of 396373949 is 949373693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267551449 + 128822500 = 16357^2 + 11350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396373949 is a prime.

It is a super-2 number, since 2×396373949² = 314224614891709202, which contains 22 as substring.

Together with 396373951, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396373949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396373919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198186974 + 198186975.

It is an arithmetic number, because the mean of its divisors is an integer number (198186975).

Almost surely, 2^396373949 is an apocalyptic number.

It is an amenable number.

396373949 is a deficient number, since it is larger than the sum of its proper divisors (1).

396373949 is an equidigital number, since it uses as much as digits as its factorization.

396373949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3306744, while the sum is 53.

The square root of 396373949 is about 19909.1423471731. The cubic root of 396373949 is about 734.5731237141.

The spelling of 396373949 in words is "three hundred ninety-six million, three hundred seventy-three thousand, nine hundred forty-nine".