425849377 has 2 divisors, whose sum is σ = 425849378. Its totient is φ = 425849376.

The previous prime is 425849363. The next prime is 425849383. The reversal of 425849377 is 773948524.

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., 425019456 + 829921 = 20616^2 + 911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425849377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425849377.

It is not a weakly prime, because it can be changed into another prime (425849477) 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, 212924688 + 212924689.

It is an arithmetic number, because the mean of its divisors is an integer number (212924689).

Almost surely, 2^425849377 is an apocalyptic number.

It is an amenable number.

425849377 is a deficient number, since it is larger than the sum of its proper divisors (1).

425849377 is an equidigital number, since it uses as much as digits as its factorization.

425849377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 49.

The square root of 425849377 is about 20636.1182638596. The cubic root of 425849377 is about 752.3478289666.

It can be divided in two parts, 4258 and 49377, that added together give a palindrome (53635).

The spelling of 425849377 in words is "four hundred twenty-five million, eight hundred forty-nine thousand, three hundred seventy-seven".