649474 has 16 divisors (see below), whose sum is σ = 1162368. Its totient is φ = 266112.

The previous prime is 649471. The next prime is 649483. The reversal of 649474 is 474946.

It is not an unprimeable number, because it can be changed into a prime (649471) 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, 687 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (72648).

2⁶⁴⁹⁴⁷⁴ is an apocalyptic number.

649474 is a deficient number, since it is larger than the sum of its proper divisors (512894).

649474 is a wasteful number, since it uses less digits than its factorization.

649474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049.

The product of its digits is 24192, while the sum is 34.

The square root of 649474 is about 805.8994974561. The cubic root of 649474 is about 86.6005379838.

The spelling of 649474 in words is "six hundred forty-nine thousand, four hundred seventy-four".