648473 has 4 divisors (see below), whose sum is σ = 741120. Its totient is φ = 555828.

The previous prime is 648449. The next prime is 648481. The reversal of 648473 is 374846.

It is a happy number.

648473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 374846 = 2 ⋅187423.

It is not a de Polignac number, because 648473 - 2⁸ = 648217 is a prime.

It is a Duffinian number.

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 648473.

It is not an unprimeable number, because it can be changed into a prime (648433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46313 + ... + 46326.

It is an arithmetic number, because the mean of its divisors is an integer number (185280).

2⁶⁴⁸⁴⁷³ is an apocalyptic number.

It is an amenable number.

648473 is a deficient number, since it is larger than the sum of its proper divisors (92647).

648473 is an equidigital number, since it uses as much as digits as its factorization.

648473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92646.

The product of its digits is 16128, while the sum is 32.

The square root of 648473 is about 805.2782127936. The cubic root of 648473 is about 86.5560241607.

The spelling of 648473 in words is "six hundred forty-eight thousand, four hundred seventy-three".