647373 has 8 divisors (see below), whose sum is σ = 891136. Its totient is φ = 417600.

The previous prime is 647371. The next prime is 647399. The reversal of 647373 is 373746.

647373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 647373 - 2¹ = 647371 is a prime.

It is a super-2 number, since 2×647373² = 838183602258, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 647373.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 647373.

It is not an unprimeable number, because it can be changed into a prime (647371) 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, 3388 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (111392).

2⁶⁴⁷³⁷³ is an apocalyptic number.

It is an amenable number.

647373 is a deficient number, since it is larger than the sum of its proper divisors (243763).

647373 is a wasteful number, since it uses less digits than its factorization.

647373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995.

The product of its digits is 10584, while the sum is 30.

The square root of 647373 is about 804.5949291414. The cubic root of 647373 is about 86.5070550117.

The spelling of 647373 in words is "six hundred forty-seven thousand, three hundred seventy-three".