65973874 has 4 divisors (see below), whose sum is σ = 98960814. Its totient is φ = 32986936.

The previous prime is 65973847. The next prime is 65973877. The reversal of 65973874 is 47837956.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51480625 + 14493249 = 7175^2 + 3807^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (65973877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16493467 + ... + 16493470.

Almost surely, 2^65973874 is an apocalyptic number.

65973874 is a deficient number, since it is larger than the sum of its proper divisors (32986940).

65973874 is a wasteful number, since it uses less digits than its factorization.

65973874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32986939.

The product of its digits is 1270080, while the sum is 49.

The square root of 65973874 is about 8122.4303013322. The cubic root of 65973874 is about 404.0706710666.

The spelling of 65973874 in words is "sixty-five million, nine hundred seventy-three thousand, eight hundred seventy-four".