925778489 has 2 divisors, whose sum is σ = 925778490. Its totient is φ = 925778488.

The previous prime is 925778473. The next prime is 925778501. The reversal of 925778489 is 984877529.

925778489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 746218489 + 179560000 = 27317^2 + 13400^2 .

It is a cyclic number.

It is not a de Polignac number, because 925778489 - 2⁴ = 925778473 is a prime.

It is not a weakly prime, because it can be changed into another prime (925771489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 462889244 + 462889245.

It is an arithmetic number, because the mean of its divisors is an integer number (462889245).

Almost surely, 2^925778489 is an apocalyptic number.

It is an amenable number.

925778489 is a deficient number, since it is larger than the sum of its proper divisors (1).

925778489 is an equidigital number, since it uses as much as digits as its factorization.

925778489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 59.

The square root of 925778489 is about 30426.6082401572. The cubic root of 925778489 is about 974.6208436758.

The spelling of 925778489 in words is "nine hundred twenty-five million, seven hundred seventy-eight thousand, four hundred eighty-nine".