396736497 has 24 divisors (see below), whose sum is σ = 616735080. Its totient is φ = 244846080.

The previous prime is 396736493. The next prime is 396736517. The reversal of 396736497 is 794637693.

It can be written as a sum of positive squares in 4 ways, for example, as 99380961 + 297355536 = 9969^2 + 17244^2 .

It is not a de Polignac number, because 396736497 - 2² = 396736493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396736493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11922 + ... + 30587.

It is an arithmetic number, because the mean of its divisors is an integer number (25697295).

Almost surely, 2^396736497 is an apocalyptic number.

It is an amenable number.

396736497 is a deficient number, since it is larger than the sum of its proper divisors (219998583).

396736497 is a wasteful number, since it uses less digits than its factorization.

396736497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42593 (or 42590 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 54.

The square root of 396736497 is about 19918.2453293457. The cubic root of 396736497 is about 734.7970173897.

The spelling of 396736497 in words is "three hundred ninety-six million, seven hundred thirty-six thousand, four hundred ninety-seven".