40763861 has 2 divisors, whose sum is σ = 40763862. Its totient is φ = 40763860.

The previous prime is 40763819. The next prime is 40763923. The reversal of 40763861 is 16836704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32890225 + 7873636 = 5735^2 + 2806^2 .

It is a cyclic number.

It is not a de Polignac number, because 40763861 - 2¹⁰ = 40762837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40763461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20381930 + 20381931.

It is an arithmetic number, because the mean of its divisors is an integer number (20381931).

Almost surely, 2^40763861 is an apocalyptic number.

It is an amenable number.

40763861 is a deficient number, since it is larger than the sum of its proper divisors (1).

40763861 is an equidigital number, since it uses as much as digits as its factorization.

40763861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 40763861 is about 6384.6582524047. The cubic root of 40763861 is about 344.1584501931.

The spelling of 40763861 in words is "forty million, seven hundred sixty-three thousand, eight hundred sixty-one".