396792289 has 4 divisors (see below), whose sum is σ = 397897920. Its totient is φ = 395686660.

The previous prime is 396792271. The next prime is 396792299. The reversal of 396792289 is 982297693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982297693 = 13 ⋅75561361.

It is a cyclic number.

It is not a de Polignac number, because 396792289 - 2¹¹ = 396790241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396792229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552277 + ... + 552994.

It is an arithmetic number, because the mean of its divisors is an integer number (99474480).

Almost surely, 2^396792289 is an apocalyptic number.

It is an amenable number.

396792289 is a deficient number, since it is larger than the sum of its proper divisors (1105631).

396792289 is a wasteful number, since it uses less digits than its factorization.

396792289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105630.

The product of its digits is 2939328, while the sum is 55.

The square root of 396792289 is about 19919.6458050840. The cubic root of 396792289 is about 734.8314599597.

The spelling of 396792289 in words is "three hundred ninety-six million, seven hundred ninety-two thousand, two hundred eighty-nine".