5649678 has 48 divisors (see below), whose sum is σ = 13338000. Its totient is φ = 1721088.

The previous prime is 5649673. The next prime is 5649701. The reversal of 5649678 is 8769465.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5649673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11073 + ... + 11571.

It is an arithmetic number, because the mean of its divisors is an integer number (277875).

Almost surely, 2^5649678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5649678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6669000).

5649678 is an abundant number, since it is smaller than the sum of its proper divisors (7688322).

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

5649678 is a wasteful number, since it uses less digits than its factorization.

5649678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 558 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 5649678 is about 2376.9051306268. The cubic root of 5649678 is about 178.1043658462.

The spelling of 5649678 in words is "five million, six hundred forty-nine thousand, six hundred seventy-eight".