65845672 has 32 divisors (see below), whose sum is σ = 127048320. Its totient is φ = 31973760.

The previous prime is 65845649. The next prime is 65845673. The reversal of 65845672 is 27654856.

It is a super-2 number, since 2×65845672² = 8671305042263168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (65845673) 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, 120103 + ... + 120649.

It is an arithmetic number, because the mean of its divisors is an integer number (3970260).

Almost surely, 2^65845672 is an apocalyptic number.

It is an amenable number.

65845672 is a deficient number, since it is larger than the sum of its proper divisors (61202648).

65845672 is a wasteful number, since it uses less digits than its factorization.

65845672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 957 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 65845672 is about 8114.5346138888. The cubic root of 65845672 is about 403.8087681040.

The spelling of 65845672 in words is "sixty-five million, eight hundred forty-five thousand, six hundred seventy-two".