3581726 has 4 divisors (see below), whose sum is σ = 5372592. Its totient is φ = 1790862.

The previous prime is 3581723. The next prime is 3581731. The reversal of 3581726 is 6271853.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×3581726² = 25657522278152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3581692 and 3581701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581723) 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 as a sum of consecutive naturals, namely, 895430 + ... + 895433.

It is an arithmetic number, because the mean of its divisors is an integer number (1343148).

Almost surely, 2^3581726 is an apocalyptic number.

3581726 is a deficient number, since it is larger than the sum of its proper divisors (1790866).

3581726 is a wasteful number, since it uses less digits than its factorization.

3581726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790865.

The product of its digits is 10080, while the sum is 32.

The square root of 3581726 is about 1892.5448475532. The cubic root of 3581726 is about 153.0021216617.

The spelling of 3581726 in words is "three million, five hundred eighty-one thousand, seven hundred twenty-six".