649376 has 48 divisors (see below), whose sum is σ = 1580544. Its totient is φ = 255744.

The previous prime is 649361. The next prime is 649379. The reversal of 649376 is 673946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649379) by changing a digit.

649376 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2801 + ... + 3023.

It is an arithmetic number, because the mean of its divisors is an integer number (32928).

2⁶⁴⁹³⁷⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790272).

649376 is an abundant number, since it is smaller than the sum of its proper divisors (931168).

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

649376 is a wasteful number, since it uses less digits than its factorization.

649376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 245 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 649376 is about 805.8386935361. The cubic root of 649376 is about 86.5961820077.

The spelling of 649376 in words is "six hundred forty-nine thousand, three hundred seventy-six".