648413 has 4 divisors (see below), whose sum is σ = 682560. Its totient is φ = 614268.

The previous prime is 648391. The next prime is 648433. The reversal of 648413 is 314846.

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 648413 - 2¹⁴ = 632029 is a prime.

It is an Ulam number.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 17045 + ... + 17082.

It is an arithmetic number, because the mean of its divisors is an integer number (170640).

2⁶⁴⁸⁴¹³ is an apocalyptic number.

It is an amenable number.

648413 is a deficient number, since it is larger than the sum of its proper divisors (34147).

648413 is a wasteful number, since it uses less digits than its factorization.

648413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34146.

The product of its digits is 2304, while the sum is 26.

The square root of 648413 is about 805.2409577263. The cubic root of 648413 is about 86.5533545448.

The spelling of 648413 in words is "six hundred forty-eight thousand, four hundred thirteen".