396799605 has 48 divisors (see below), whose sum is σ = 725053680. Its totient is φ = 200438784.

The previous prime is 396799589. The next prime is 396799631. The reversal of 396799605 is 506997693.

It can be written as a sum of positive squares in 8 ways, for example, as 32524209 + 364275396 = 5703^2 + 19086^2 .

It is not a de Polignac number, because 396799605 - 2⁴ = 396799589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66297 + ... + 72033.

It is an arithmetic number, because the mean of its divisors is an integer number (15105285).

Almost surely, 2^396799605 is an apocalyptic number.

It is an amenable number.

396799605 is a deficient number, since it is larger than the sum of its proper divisors (328254075).

396799605 is a wasteful number, since it uses less digits than its factorization.

396799605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830 (or 5827 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 54.

The square root of 396799605 is about 19919.8294420409. The cubic root of 396799605 is about 734.8359761713.

It can be divided in two parts, 39679 and 9605, that added together give a square (49284 = 222²).

The spelling of 396799605 in words is "three hundred ninety-six million, seven hundred ninety-nine thousand, six hundred five".