634853077 has 2 divisors, whose sum is σ = 634853078. Its totient is φ = 634853076.

The previous prime is 634853053. The next prime is 634853081. The reversal of 634853077 is 770358436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582449956 + 52403121 = 24134^2 + 7239^2 .

It is a cyclic number.

It is not a de Polignac number, because 634853077 - 2²³ = 626464469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634853777) 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, 317426538 + 317426539.

It is an arithmetic number, because the mean of its divisors is an integer number (317426539).

Almost surely, 2^634853077 is an apocalyptic number.

It is an amenable number.

634853077 is a deficient number, since it is larger than the sum of its proper divisors (1).

634853077 is an equidigital number, since it uses as much as digits as its factorization.

634853077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 634853077 is about 25196.2909373582. The cubic root of 634853077 is about 859.4575076036.

The spelling of 634853077 in words is "six hundred thirty-four million, eight hundred fifty-three thousand, seventy-seven".