40699783 has 2 divisors, whose sum is σ = 40699784. Its totient is φ = 40699782.

The previous prime is 40699781. The next prime is 40699829. The reversal of 40699783 is 38799604.

40699783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (40699829) can be obtained adding 40699783 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40699783 - 2¹ = 40699781 is a prime.

Together with 40699781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40699781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20349891 + 20349892.

It is an arithmetic number, because the mean of its divisors is an integer number (20349892).

Almost surely, 2^40699783 is an apocalyptic number.

40699783 is a deficient number, since it is larger than the sum of its proper divisors (1).

40699783 is an equidigital number, since it uses as much as digits as its factorization.

40699783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 40699783 is about 6379.6381558831. The cubic root of 40699783 is about 343.9780244435.

The spelling of 40699783 in words is "forty million, six hundred ninety-nine thousand, seven hundred eighty-three".