40797443 has 2 divisors, whose sum is σ = 40797444. Its totient is φ = 40797442.

The previous prime is 40797431. The next prime is 40797479. The reversal of 40797443 is 34479704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40797443 - 2⁸ = 40797187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40797397 and 40797406.

It is not a weakly prime, because it can be changed into another prime (40797413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20398721 + 20398722.

It is an arithmetic number, because the mean of its divisors is an integer number (20398722).

Almost surely, 2^40797443 is an apocalyptic number.

40797443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40797443 is an equidigital number, since it uses as much as digits as its factorization.

40797443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 40797443 is about 6387.2876089934. The cubic root of 40797443 is about 344.2529322210.

The spelling of 40797443 in words is "forty million, seven hundred ninety-seven thousand, four hundred forty-three".