65402973 has 12 divisors (see below), whose sum is σ = 94782688. Its totient is φ = 43458120.

The previous prime is 65402969. The next prime is 65402993. The reversal of 65402973 is 37920456.

It is not a de Polignac number, because 65402973 - 2² = 65402969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65402923) 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 in 11 ways as a sum of consecutive naturals, for example, 9073 + ... + 14598.

Almost surely, 2^65402973 is an apocalyptic number.

It is an amenable number.

65402973 is a deficient number, since it is larger than the sum of its proper divisors (29379715).

65402973 is a wasteful number, since it uses less digits than its factorization.

65402973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23984 (or 23981 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 65402973 is about 8087.2104584956. The cubic root of 65402973 is about 402.9017590005.

The spelling of 65402973 in words is "sixty-five million, four hundred two thousand, nine hundred seventy-three".