64486273 has 4 divisors (see below), whose sum is σ = 67290048. Its totient is φ = 61682500.

The previous prime is 64486267. The next prime is 64486297. The reversal of 64486273 is 37268446.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64486273 - 2⁵ = 64486241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64486573) 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 3 ways as a sum of consecutive naturals, for example, 1401853 + ... + 1401898.

It is an arithmetic number, because the mean of its divisors is an integer number (16822512).

Almost surely, 2^64486273 is an apocalyptic number.

It is an amenable number.

64486273 is a deficient number, since it is larger than the sum of its proper divisors (2803775).

64486273 is a wasteful number, since it uses less digits than its factorization.

64486273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803774.

The product of its digits is 193536, while the sum is 40.

The square root of 64486273 is about 8030.3345509387. The cubic root of 64486273 is about 401.0105137551.

It can be divided in two parts, 6448 and 6273, that added together give a palindrome (12721).

The spelling of 64486273 in words is "sixty-four million, four hundred eighty-six thousand, two hundred seventy-three".