40828793 has 2 divisors, whose sum is σ = 40828794. Its totient is φ = 40828792.

The previous prime is 40828789. The next prime is 40828811. The reversal of 40828793 is 39782804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33500944 + 7327849 = 5788^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 40828793 - 2² = 40828789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40828793.

It is not a weakly prime, because it can be changed into another prime (40828783) 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 as a sum of consecutive naturals, namely, 20414396 + 20414397.

It is an arithmetic number, because the mean of its divisors is an integer number (20414397).

Almost surely, 2^40828793 is an apocalyptic number.

It is an amenable number.

40828793 is a deficient number, since it is larger than the sum of its proper divisors (1).

40828793 is an equidigital number, since it uses as much as digits as its factorization.

40828793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 40828793 is about 6389.7412310672. The cubic root of 40828793 is about 344.3410877967.

The spelling of 40828793 in words is "forty million, eight hundred twenty-eight thousand, seven hundred ninety-three".