900941857 has 2 divisors, whose sum is σ = 900941858. Its totient is φ = 900941856.

The previous prime is 900941849. The next prime is 900941863. The reversal of 900941857 is 758149009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 599711121 + 301230736 = 24489^2 + 17356^2 .

It is a cyclic number.

It is not a de Polignac number, because 900941857 - 2³ = 900941849 is a prime.

It is not a weakly prime, because it can be changed into another prime (900941807) 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, 450470928 + 450470929.

It is an arithmetic number, because the mean of its divisors is an integer number (450470929).

Almost surely, 2^900941857 is an apocalyptic number.

It is an amenable number.

900941857 is a deficient number, since it is larger than the sum of its proper divisors (1).

900941857 is an equidigital number, since it uses as much as digits as its factorization.

900941857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 900941857 is about 30015.6935118947. The cubic root of 900941857 is about 965.8260645703.

The spelling of 900941857 in words is "nine hundred million, nine hundred forty-one thousand, eight hundred fifty-seven".