648474 has 8 divisors (see below), whose sum is σ = 1296960. Its totient is φ = 216156.

The previous prime is 648449. The next prime is 648481. The reversal of 648474 is 474846.

648474 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.

648474 is an admirable number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648474.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54034 + ... + 54045.

It is an arithmetic number, because the mean of its divisors is an integer number (162120).

2⁶⁴⁸⁴⁷⁴ is an apocalyptic number.

648474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648474 is a wasteful number, since it uses less digits than its factorization.

648474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108084.

The product of its digits is 21504, while the sum is 33.

The square root of 648474 is about 805.2788336968. The cubic root of 648474 is about 86.5560686529.

The spelling of 648474 in words is "six hundred forty-eight thousand, four hundred seventy-four".