634053653 has 2 divisors, whose sum is σ = 634053654. Its totient is φ = 634053652.

The previous prime is 634053631. The next prime is 634053671. The reversal of 634053653 is 356350436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519520849 + 114532804 = 22793^2 + 10702^2 .

It is a cyclic number.

It is not a de Polignac number, because 634053653 - 2¹² = 634049557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634053613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317026826 + 317026827.

It is an arithmetic number, because the mean of its divisors is an integer number (317026827).

Almost surely, 2^634053653 is an apocalyptic number.

It is an amenable number.

634053653 is a deficient number, since it is larger than the sum of its proper divisors (1).

634053653 is an equidigital number, since it uses as much as digits as its factorization.

634053653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 35.

The square root of 634053653 is about 25180.4220179091. The cubic root of 634053653 is about 859.0966054368.

The spelling of 634053653 in words is "six hundred thirty-four million, fifty-three thousand, six hundred fifty-three".