65671634 has 8 divisors (see below), whose sum is σ = 112579968. Its totient is φ = 28144980.

The previous prime is 65671597. The next prime is 65671637. The reversal of 65671634 is 43617656.

It is a happy number.

65671634 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 a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65671637) 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 3 ways as a sum of consecutive naturals, for example, 2345402 + ... + 2345429.

It is an arithmetic number, because the mean of its divisors is an integer number (14072496).

Almost surely, 2^65671634 is an apocalyptic number.

65671634 is a deficient number, since it is larger than the sum of its proper divisors (46908334).

65671634 is a wasteful number, since it uses less digits than its factorization.

65671634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690840.

The product of its digits is 90720, while the sum is 38.

The square root of 65671634 is about 8103.8036748184. The cubic root of 65671634 is about 403.4526825426.

The spelling of 65671634 in words is "sixty-five million, six hundred seventy-one thousand, six hundred thirty-four".