40868783 has 2 divisors, whose sum is σ = 40868784. Its totient is φ = 40868782.

The previous prime is 40868749. The next prime is 40868797. The reversal of 40868783 is 38786804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40868783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40868383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20434391 + 20434392.

It is an arithmetic number, because the mean of its divisors is an integer number (20434392).

Almost surely, 2^40868783 is an apocalyptic number.

40868783 is a deficient number, since it is larger than the sum of its proper divisors (1).

40868783 is an equidigital number, since it uses as much as digits as its factorization.

40868783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 40868783 is about 6392.8696999079. The cubic root of 40868783 is about 344.4534734096.

The spelling of 40868783 in words is "forty million, eight hundred sixty-eight thousand, seven hundred eighty-three".