425839877 has 2 divisors, whose sum is σ = 425839878. Its totient is φ = 425839876.

The previous prime is 425839867. The next prime is 425839903. The reversal of 425839877 is 778938524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291419041 + 134420836 = 17071^2 + 11594^2 .

It is a cyclic number.

It is not a de Polignac number, because 425839877 - 2¹⁶ = 425774341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425839807) 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, 212919938 + 212919939.

It is an arithmetic number, because the mean of its divisors is an integer number (212919939).

Almost surely, 2^425839877 is an apocalyptic number.

It is an amenable number.

425839877 is a deficient number, since it is larger than the sum of its proper divisors (1).

425839877 is an equidigital number, since it uses as much as digits as its factorization.

425839877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 53.

The square root of 425839877 is about 20635.8880836275. Note that the first 3 decimals coincide. The cubic root of 425839877 is about 752.3422343770.

The spelling of 425839877 in words is "four hundred twenty-five million, eight hundred thirty-nine thousand, eight hundred seventy-seven".