396839679 has 8 divisors (see below), whose sum is σ = 533974320. Its totient is φ = 262132416.

The previous prime is 396839671. The next prime is 396839693. The reversal of 396839679 is 976938693.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 396839679 - 2³ = 396839671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396839671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606462 + ... + 607115.

It is an arithmetic number, because the mean of its divisors is an integer number (66746790).

Almost surely, 2^396839679 is an apocalyptic number.

396839679 is a deficient number, since it is larger than the sum of its proper divisors (137134641).

396839679 is a wasteful number, since it uses less digits than its factorization.

396839679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213689.

The product of its digits is 13226976, while the sum is 60.

The square root of 396839679 is about 19920.8352987519. The cubic root of 396839679 is about 734.8607131127.

The spelling of 396839679 in words is "three hundred ninety-six million, eight hundred thirty-nine thousand, six hundred seventy-nine".