396673243 has 2 divisors, whose sum is σ = 396673244. Its totient is φ = 396673242.

The previous prime is 396673219. The next prime is 396673247. The reversal of 396673243 is 342376693.

It is a strong prime.

It is an emirp because it is prime and its reverse (342376693) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396673243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396673243.

It is not a weakly prime, because it can be changed into another prime (396673247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198336621 + 198336622.

It is an arithmetic number, because the mean of its divisors is an integer number (198336622).

Almost surely, 2^396673243 is an apocalyptic number.

396673243 is a deficient number, since it is larger than the sum of its proper divisors (1).

396673243 is an equidigital number, since it uses as much as digits as its factorization.

396673243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 43.

The square root of 396673243 is about 19916.6574253814. The cubic root of 396673243 is about 734.7579643312.

The spelling of 396673243 in words is "three hundred ninety-six million, six hundred seventy-three thousand, two hundred forty-three".