65289873 has 16 divisors (see below), whose sum is σ = 95256000. Its totient is φ = 39449280.

The previous prime is 65289859. The next prime is 65289881. The reversal of 65289873 is 37898256.

It is not a de Polignac number, because 65289873 - 2⁴ = 65289857 is a prime.

It is a super-2 number, since 2×65289873² = 8525535032712258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65289803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8683 + ... + 14351.

It is an arithmetic number, because the mean of its divisors is an integer number (5953500).

Almost surely, 2^65289873 is an apocalyptic number.

It is an amenable number.

65289873 is a deficient number, since it is larger than the sum of its proper divisors (29966127).

65289873 is a wasteful number, since it uses less digits than its factorization.

65289873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032.

The product of its digits is 725760, while the sum is 48.

The square root of 65289873 is about 8080.2149105083. The cubic root of 65289873 is about 402.6693817918.

It can be divided in two parts, 652 and 89873, that added together give a triangular number (90525 = T₄₂₅).

The spelling of 65289873 in words is "sixty-five million, two hundred eighty-nine thousand, eight hundred seventy-three".