40564763 has 2 divisors, whose sum is σ = 40564764. Its totient is φ = 40564762.

The previous prime is 40564751. The next prime is 40564793. The reversal of 40564763 is 36746504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40564763 - 2⁴ = 40564747 is a prime.

It is not a weakly prime, because it can be changed into another prime (40564723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20282381 + 20282382.

It is an arithmetic number, because the mean of its divisors is an integer number (20282382).

Almost surely, 2^40564763 is an apocalyptic number.

40564763 is a deficient number, since it is larger than the sum of its proper divisors (1).

40564763 is an equidigital number, since it uses as much as digits as its factorization.

40564763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 40564763 is about 6369.0472599911. The cubic root of 40564763 is about 343.5972249818.

The spelling of 40564763 in words is "forty million, five hundred sixty-four thousand, seven hundred sixty-three".