648934 has 16 divisors (see below), whose sum is σ = 1144080. Its totient is φ = 272160.

The previous prime is 648931. The next prime is 648937. The reversal of 648934 is 439846.

It is an interprime number because it is at equal distance from previous prime (648931) and next prime (648937).

It is a super-2 number, since 2×648934² = 842230672712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 648934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648931) 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, 849 + ... + 1420.

It is an arithmetic number, because the mean of its divisors is an integer number (71505).

2⁶⁴⁸⁹³⁴ is an apocalyptic number.

648934 is a deficient number, since it is larger than the sum of its proper divisors (495146).

648934 is a wasteful number, since it uses less digits than its factorization.

648934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its digits is 20736, while the sum is 34.

The square root of 648934 is about 805.5643984189. The cubic root of 648934 is about 86.5765302190.

It can be divided in two parts, 64 and 8934, that added together give a palindrome (8998).

The spelling of 648934 in words is "six hundred forty-eight thousand, nine hundred thirty-four".