634450247 has 8 divisors (see below), whose sum is σ = 656684160. Its totient is φ = 612326880.

The previous prime is 634450237. The next prime is 634450253. The reversal of 634450247 is 742054436.

634450247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 634450247 - 2⁴ = 634450231 is a prime.

It is a super-2 number, since 2×634450247² = 805054231836722018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634450237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15872 + ... + 38997.

It is an arithmetic number, because the mean of its divisors is an integer number (82085520).

Almost surely, 2^634450247 is an apocalyptic number.

634450247 is a deficient number, since it is larger than the sum of its proper divisors (22233913).

634450247 is a wasteful number, since it uses less digits than its factorization.

634450247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55273.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 634450247 is about 25188.2958335811. The cubic root of 634450247 is about 859.2756867836.

The spelling of 634450247 in words is "six hundred thirty-four million, four hundred fifty thousand, two hundred forty-seven".