3620726 has 4 divisors (see below), whose sum is σ = 5431092. Its totient is φ = 1810362.

The previous prime is 3620723. The next prime is 3620741. The reversal of 3620726 is 6270263.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3620695 and 3620704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905180 + ... + 905183.

It is an arithmetic number, because the mean of its divisors is an integer number (1357773).

Almost surely, 2^3620726 is an apocalyptic number.

3620726 is a deficient number, since it is larger than the sum of its proper divisors (1810366).

3620726 is a wasteful number, since it uses less digits than its factorization.

3620726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810365.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 3620726 is about 1902.8205380435. The cubic root of 3620726 is about 153.5554447502. Note that the first 3 decimals are identical.

Adding to 3620726 its reverse (6270263), we get a palindrome (9890989).

The spelling of 3620726 in words is "three million, six hundred twenty thousand, seven hundred twenty-six".