944064691 has 2 divisors, whose sum is σ = 944064692. Its totient is φ = 944064690.

The previous prime is 944064683. The next prime is 944064727. The reversal of 944064691 is 196460449.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 944064691 - 2³ = 944064683 is a prime.

It is not a weakly prime, because it can be changed into another prime (944064661) 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, 472032345 + 472032346.

It is an arithmetic number, because the mean of its divisors is an integer number (472032346).

Almost surely, 2^944064691 is an apocalyptic number.

944064691 is a deficient number, since it is larger than the sum of its proper divisors (1).

944064691 is an equidigital number, since it uses as much as digits as its factorization.

944064691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 944064691 is about 30725.6357297941. The cubic root of 944064691 is about 980.9960340433.

The spelling of 944064691 in words is "nine hundred forty-four million, sixty-four thousand, six hundred ninety-one".