634662465 has 8 divisors (see below), whose sum is σ = 1015459968. Its totient is φ = 338486640.

The previous prime is 634662461. The next prime is 634662467. The reversal of 634662465 is 564266436.

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

It is not a de Polignac number, because 634662465 - 2² = 634662461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (634662461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21155401 + ... + 21155430.

It is an arithmetic number, because the mean of its divisors is an integer number (126932496).

Almost surely, 2^634662465 is an apocalyptic number.

It is an amenable number.

634662465 is a deficient number, since it is larger than the sum of its proper divisors (380797503).

634662465 is a wasteful number, since it uses less digits than its factorization.

634662465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42310839.

The product of its digits is 622080, while the sum is 42.

The square root of 634662465 is about 25192.5081125322. The cubic root of 634662465 is about 859.3714828109.

The spelling of 634662465 in words is "six hundred thirty-four million, six hundred sixty-two thousand, four hundred sixty-five".