396828497 has 4 divisors (see below), whose sum is σ = 427353780. Its totient is φ = 366303216.

The previous prime is 396828493. The next prime is 396828517. The reversal of 396828497 is 794828693.

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 17007376 + 379821121 = 4124^2 + 19489^2 .

It is a cyclic number.

It is not a de Polignac number, because 396828497 - 2² = 396828493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396828491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15262622 + ... + 15262647.

It is an arithmetic number, because the mean of its divisors is an integer number (106838445).

Almost surely, 2^396828497 is an apocalyptic number.

It is an amenable number.

396828497 is a deficient number, since it is larger than the sum of its proper divisors (30525283).

396828497 is a wasteful number, since it uses less digits than its factorization.

396828497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30525282.

The product of its digits is 5225472, while the sum is 56.

The square root of 396828497 is about 19920.5546358529. The cubic root of 396828497 is about 734.8538108378.

The spelling of 396828497 in words is "three hundred ninety-six million, eight hundred twenty-eight thousand, four hundred ninety-seven".