65985373 has 6 divisors (see below), whose sum is σ = 66433146. Its totient is φ = 65540592.

The previous prime is 65985301. The next prime is 65985379. The reversal of 65985373 is 37358956.

It can be written as a sum of positive squares in 3 ways, for example, as 1375929 + 64609444 = 1173^2 + 8038^2 .

It is not a de Polignac number, because 65985373 - 2¹⁷ = 65854301 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 (65985379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23311 + ... + 25987.

It is an arithmetic number, because the mean of its divisors is an integer number (11072191).

Almost surely, 2^65985373 is an apocalyptic number.

It is an amenable number.

65985373 is a deficient number, since it is larger than the sum of its proper divisors (447773).

65985373 is an equidigital number, since it uses as much as digits as its factorization.

65985373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991 (or 2834 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 65985373 is about 8123.1381251337. The cubic root of 65985373 is about 404.0941457061.

The spelling of 65985373 in words is "sixty-five million, nine hundred eighty-five thousand, three hundred seventy-three".