3520726 has 8 divisors (see below), whose sum is σ = 5761224. Its totient is φ = 1600320.

The previous prime is 3520697. The next prime is 3520729. The reversal of 3520726 is 6270253.

It is a sphenic number, since it is the product of 3 distinct primes.

3520726 is a modest number, since divided by 726 gives 352 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 3520726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79995 + ... + 80038.

It is an arithmetic number, because the mean of its divisors is an integer number (720153).

Almost surely, 2^3520726 is an apocalyptic number.

3520726 is a deficient number, since it is larger than the sum of its proper divisors (2240498).

3520726 is a wasteful number, since it uses less digits than its factorization.

3520726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160046.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 3520726 is about 1876.3597736042. The cubic root of 3520726 is about 152.1285558308.

Adding to 3520726 its reverse (6270253), we get a palindrome (9790979).

It can be divided in two parts, 35 and 20726, that multiplied together give a triangular number (725410 = T₁₂₀₄).

The spelling of 3520726 in words is "three million, five hundred twenty thousand, seven hundred twenty-six".