5698640 has 20 divisors (see below), whose sum is σ = 13249524. Its totient is φ = 2279424.

The previous prime is 5698639. The next prime is 5698691. The reversal of 5698640 is 468965.

It can be written as a sum of positive squares in 2 ways, for example, as 3125824 + 2572816 = 1768^2 + 1604^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 5698594 and 5698603.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35537 + ... + 35696.

Almost surely, 2^5698640 is an apocalyptic number.

It is an amenable number.

5698640 is an abundant number, since it is smaller than the sum of its proper divisors (7550884).

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

5698640 is a wasteful number, since it uses less digits than its factorization.

5698640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71246 (or 71240 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 5698640 is about 2387.1824396137. The cubic root of 5698640 is about 178.6173906832.

The spelling of 5698640 in words is "five million, six hundred ninety-eight thousand, six hundred forty".