945644087 has 2 divisors, whose sum is σ = 945644088. Its totient is φ = 945644086.

The previous prime is 945644083. The next prime is 945644099. The reversal of 945644087 is 780446549.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 945644087 - 2² = 945644083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945644081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472822043 + 472822044.

It is an arithmetic number, because the mean of its divisors is an integer number (472822044).

Almost surely, 2^945644087 is an apocalyptic number.

945644087 is a deficient number, since it is larger than the sum of its proper divisors (1).

945644087 is an equidigital number, since it uses as much as digits as its factorization.

945644087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 945644087 is about 30751.3265892709. The cubic root of 945644087 is about 981.5427896502.

The spelling of 945644087 in words is "nine hundred forty-five million, six hundred forty-four thousand, eighty-seven".