649104 has 20 divisors (see below), whose sum is σ = 1676976. Its totient is φ = 216352.

The previous prime is 649093. The next prime is 649123. The reversal of 649104 is 401946.

649104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

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, 6714 + ... + 6809.

2⁶⁴⁹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

649104 is an abundant number, since it is smaller than the sum of its proper divisors (1027872).

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

649104 is a wasteful number, since it uses less digits than its factorization.

649104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13534 (or 13528 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 649104 is about 805.6699075924. The cubic root of 649104 is about 86.5840896550.

The spelling of 649104 in words is "six hundred forty-nine thousand, one hundred four".