434625857 has 2 divisors, whose sum is σ = 434625858. Its totient is φ = 434625856.

The previous prime is 434625833. The next prime is 434625883. The reversal of 434625857 is 758526434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242082481 + 192543376 = 15559^2 + 13876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434625857 is a prime.

It is not a weakly prime, because it can be changed into another prime (434625157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217312928 + 217312929.

It is an arithmetic number, because the mean of its divisors is an integer number (217312929).

Almost surely, 2^434625857 is an apocalyptic number.

It is an amenable number.

434625857 is a deficient number, since it is larger than the sum of its proper divisors (1).

434625857 is an equidigital number, since it uses as much as digits as its factorization.

434625857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 44.

The square root of 434625857 is about 20847.6822932431. The cubic root of 434625857 is about 757.4811909920.

It can be divided in two parts, 4346 and 25857, that added together give a palindrome (30203).

The spelling of 434625857 in words is "four hundred thirty-four million, six hundred twenty-five thousand, eight hundred fifty-seven".