944906857 has 2 divisors, whose sum is σ = 944906858. Its totient is φ = 944906856.

The previous prime is 944906839. The next prime is 944906873. The reversal of 944906857 is 758609449.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944886121 + 20736 = 30739^2 + 144^2 .

It is a cyclic number.

It is not a de Polignac number, because 944906857 - 2¹¹ = 944904809 is a prime.

It is not a weakly prime, because it can be changed into another prime (944906827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472453428 + 472453429.

It is an arithmetic number, because the mean of its divisors is an integer number (472453429).

Almost surely, 2^944906857 is an apocalyptic number.

It is an amenable number.

944906857 is a deficient number, since it is larger than the sum of its proper divisors (1).

944906857 is an equidigital number, since it uses as much as digits as its factorization.

944906857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 944906857 is about 30739.3372895383. The cubic root of 944906857 is about 981.2876510524.

The spelling of 944906857 in words is "nine hundred forty-four million, nine hundred six thousand, eight hundred fifty-seven".