396965776 has 45 divisors (see below), whose sum is σ = 819822931. Its totient is φ = 186169856.

The previous prime is 396965773. The next prime is 396965837. The reversal of 396965776 is 677569693.

The square root of 396965776 is 19924.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 222725776 + 174240000 = 14924^2 + 13200^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396965776.

It is not an unprimeable number, because it can be changed into a prime (396965773) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1354686 + ... + 1354978.

Almost surely, 2^396965776 is an apocalyptic number.

396965776 is the 19924-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396965776

396965776 is an abundant number, since it is smaller than the sum of its proper divisors (422857155).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396965776 is an equidigital number, since it uses as much as digits as its factorization.

396965776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 312 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 58.

The cubic root of 396965776 is about 734.9385396030.

The spelling of 396965776 in words is "three hundred ninety-six million, nine hundred sixty-five thousand, seven hundred seventy-six".