65372989 has 8 divisors (see below), whose sum is σ = 73775520. Its totient is φ = 57380400.

The previous prime is 65372963. The next prime is 65372999. The reversal of 65372989 is 98927356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65372989 - 2⁷ = 65372861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65372999) 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, 102147 + ... + 102784.

It is an arithmetic number, because the mean of its divisors is an integer number (9221940).

Almost surely, 2^65372989 is an apocalyptic number.

It is an amenable number.

65372989 is a deficient number, since it is larger than the sum of its proper divisors (8402531).

65372989 is a wasteful number, since it uses less digits than its factorization.

65372989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204971.

The product of its digits is 816480, while the sum is 49.

The square root of 65372989 is about 8085.3564547273. The cubic root of 65372989 is about 402.8401794709.

The spelling of 65372989 in words is "sixty-five million, three hundred seventy-two thousand, nine hundred eighty-nine".