40683793 has 2 divisors, whose sum is σ = 40683794. Its totient is φ = 40683792.

The previous prime is 40683761. The next prime is 40683809. The reversal of 40683793 is 39738604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40030929 + 652864 = 6327^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 40683793 - 2⁵ = 40683761 is a prime.

It is not a weakly prime, because it can be changed into another prime (40683743) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20341896 + 20341897.

It is an arithmetic number, because the mean of its divisors is an integer number (20341897).

Almost surely, 2^40683793 is an apocalyptic number.

It is an amenable number.

40683793 is a deficient number, since it is larger than the sum of its proper divisors (1).

40683793 is an equidigital number, since it uses as much as digits as its factorization.

40683793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 40683793 is about 6378.3848268978. The cubic root of 40683793 is about 343.9329715491.

The spelling of 40683793 in words is "forty million, six hundred eighty-three thousand, seven hundred ninety-three".