396828049 has 2 divisors, whose sum is σ = 396828050. Its totient is φ = 396828048.

The previous prime is 396828031. The next prime is 396828077. The reversal of 396828049 is 940828693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228010000 + 168818049 = 15100^2 + 12993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396828049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 396827993 and 396828011.

It is not a weakly prime, because it can be changed into another prime (396828079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198414024 + 198414025.

It is an arithmetic number, because the mean of its divisors is an integer number (198414025).

Almost surely, 2^396828049 is an apocalyptic number.

It is an amenable number.

396828049 is a deficient number, since it is larger than the sum of its proper divisors (1).

396828049 is an equidigital number, since it uses as much as digits as its factorization.

396828049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 396828049 is about 19920.5433911829. The cubic root of 396828049 is about 734.8535342996.

The spelling of 396828049 in words is "three hundred ninety-six million, eight hundred twenty-eight thousand, forty-nine".