5639746 has 24 divisors (see below), whose sum is σ = 10033920. Its totient is φ = 2328816.

The previous prime is 5639741. The next prime is 5639749. The reversal of 5639746 is 6479365.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5639699 and 5639708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11535 + ... + 12013.

It is an arithmetic number, because the mean of its divisors is an integer number (418080).

Almost surely, 2^5639746 is an apocalyptic number.

5639746 is a deficient number, since it is larger than the sum of its proper divisors (4394174).

5639746 is a wasteful number, since it uses less digits than its factorization.

5639746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 517 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The square root of 5639746 is about 2374.8149401585. The cubic root of 5639746 is about 177.9999368766. Note that the first 4 decimals are identical.

The spelling of 5639746 in words is "five million, six hundred thirty-nine thousand, seven hundred forty-six".