64273573 has 12 divisors (see below), whose sum is σ = 79542048. Its totient is φ = 50852880.

The previous prime is 64273543. The next prime is 64273591. The reversal of 64273573 is 37537246.

It is not a de Polignac number, because 64273573 - 2¹⁷ = 64142501 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 (64273513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25983 + ... + 28348.

It is an arithmetic number, because the mean of its divisors is an integer number (6628504).

Almost surely, 2^64273573 is an apocalyptic number.

It is an amenable number.

64273573 is a deficient number, since it is larger than the sum of its proper divisors (15268475).

64273573 is a wasteful number, since it uses less digits than its factorization.

64273573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54364 (or 54351 counting only the distinct ones).

The product of its digits is 105840, while the sum is 37.

The square root of 64273573 is about 8017.0800794304. The cubic root of 64273573 is about 400.5691335833.

It can be divided in two parts, 64273 and 573, that added together give a palindrome (64846).

The spelling of 64273573 in words is "sixty-four million, two hundred seventy-three thousand, five hundred seventy-three".