396708437 has 4 divisors (see below), whose sum is σ = 403211916. Its totient is φ = 390204960.

The previous prime is 396708421. The next prime is 396708449. The reversal of 396708437 is 734807693.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 103408561 + 293299876 = 10169^2 + 17126^2 .

It is a cyclic number.

It is not a de Polignac number, because 396708437 - 2⁴ = 396708421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396708391 and 396708400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396702437) 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, 3251648 + ... + 3251769.

It is an arithmetic number, because the mean of its divisors is an integer number (100802979).

Almost surely, 2^396708437 is an apocalyptic number.

It is an amenable number.

396708437 is a deficient number, since it is larger than the sum of its proper divisors (6503479).

396708437 is an equidigital number, since it uses as much as digits as its factorization.

396708437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503478.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 396708437 is about 19917.5409375756. The cubic root of 396708437 is about 734.7796936408.

The spelling of 396708437 in words is "three hundred ninety-six million, seven hundred eight thousand, four hundred thirty-seven".