648435 has 16 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 342240.

The previous prime is 648433. The next prime is 648437. The reversal of 648435 is 534846.

It is an interprime number because it is at equal distance from previous prime (648433) and next prime (648437).

It is not a de Polignac number, because 648435 - 2¹ = 648433 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1930 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2⁶⁴⁸⁴³⁵ is an apocalyptic number.

648435 is a deficient number, since it is larger than the sum of its proper divisors (399885).

648435 is a wasteful number, since it uses less digits than its factorization.

648435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its digits is 11520, while the sum is 30.

The square root of 648435 is about 805.2546181178. The cubic root of 648435 is about 86.5543334231.

The spelling of 648435 in words is "six hundred forty-eight thousand, four hundred thirty-five".