396799247 has 4 divisors (see below), whose sum is σ = 427322280. Its totient is φ = 366276216.

The previous prime is 396799237. The next prime is 396799267. The reversal of 396799247 is 742997693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 396799247 - 2⁴ = 396799231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396799192 and 396799201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396799237) 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 in 3 ways as a sum of consecutive naturals, for example, 15261497 + ... + 15261522.

It is an arithmetic number, because the mean of its divisors is an integer number (106830570).

Almost surely, 2^396799247 is an apocalyptic number.

396799247 is a deficient number, since it is larger than the sum of its proper divisors (30523033).

396799247 is a wasteful number, since it uses less digits than its factorization.

396799247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30523032.

The product of its digits is 5143824, while the sum is 56.

The square root of 396799247 is about 19919.8204560182. The cubic root of 396799247 is about 734.8357551770.

The spelling of 396799247 in words is "three hundred ninety-six million, seven hundred ninety-nine thousand, two hundred forty-seven".