648370 has 16 divisors (see below), whose sum is σ = 1218240. Its totient is φ = 247984.

The previous prime is 648343. The next prime is 648371. The reversal of 648370 is 73846.

648370 = 73² + 74² + ... + 132².

648370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (648371) 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, 1180 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (76140).

2⁶⁴⁸³⁷⁰ is an apocalyptic number.

648370 is a deficient number, since it is larger than the sum of its proper divisors (569870).

648370 is a wasteful number, since it uses less digits than its factorization.

648370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 648370 is about 805.2142572012. The cubic root of 648370 is about 86.5514412187.

The spelling of 648370 in words is "six hundred forty-eight thousand, three hundred seventy".