634580245 has 8 divisors (see below), whose sum is σ = 820073016. Its totient is φ = 468613056.

The previous prime is 634580227. The next prime is 634580251. The reversal of 634580245 is 542085436.

It can be written as a sum of positive squares in 4 ways, for example, as 9480241 + 625100004 = 3079^2 + 25002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634580245 - 2⁵ = 634580213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4881322 + ... + 4881451.

It is an arithmetic number, because the mean of its divisors is an integer number (102509127).

Almost surely, 2^634580245 is an apocalyptic number.

634580245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

634580245 is a deficient number, since it is larger than the sum of its proper divisors (185492771).

634580245 is a wasteful number, since it uses less digits than its factorization.

634580245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762791.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 634580245 is about 25190.8762253321. The cubic root of 634580245 is about 859.3343709189.

The spelling of 634580245 in words is "six hundred thirty-four million, five hundred eighty thousand, two hundred forty-five".