40783759 has 2 divisors, whose sum is σ = 40783760. Its totient is φ = 40783758.

The previous prime is 40783753. The next prime is 40783763. The reversal of 40783759 is 95738704.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40783759 - 2⁵ = 40783727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40783753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20391879 + 20391880.

It is an arithmetic number, because the mean of its divisors is an integer number (20391880).

Almost surely, 2^40783759 is an apocalyptic number.

40783759 is a deficient number, since it is larger than the sum of its proper divisors (1).

40783759 is an equidigital number, since it uses as much as digits as its factorization.

40783759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 40783759 is about 6386.2163289384. The cubic root of 40783759 is about 344.2144389270.

The spelling of 40783759 in words is "forty million, seven hundred eighty-three thousand, seven hundred fifty-nine".