396956559 has 4 divisors (see below), whose sum is σ = 529275416. Its totient is φ = 264637704.

The previous prime is 396956533. The next prime is 396956597. The reversal of 396956559 is 955659693.

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

It is not a de Polignac number, because 396956559 - 2¹² = 396952463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396956499 and 396956508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396957559) 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, 66159424 + ... + 66159429.

It is an arithmetic number, because the mean of its divisors is an integer number (132318854).

Almost surely, 2^396956559 is an apocalyptic number.

396956559 is a deficient number, since it is larger than the sum of its proper divisors (132318857).

396956559 is a wasteful number, since it uses less digits than its factorization.

396956559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132318856.

The product of its digits is 9841500, while the sum is 57.

The square root of 396956559 is about 19923.7686947023. The cubic root of 396956559 is about 734.9328514712.

The spelling of 396956559 in words is "three hundred ninety-six million, nine hundred fifty-six thousand, five hundred fifty-nine".