3621723 has 32 divisors (see below), whose sum is σ = 6028800. Its totient is φ = 1886976.

The previous prime is 3621721. The next prime is 3621727. The reversal of 3621723 is 3271263.

It is not a de Polignac number, because 3621723 - 2¹ = 3621721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3621693 and 3621702.

It is not an unprimeable number, because it can be changed into a prime (3621721) 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 31 ways as a sum of consecutive naturals, for example, 11415 + ... + 11727.

It is an arithmetic number, because the mean of its divisors is an integer number (188400).

Almost surely, 2^3621723 is an apocalyptic number.

3621723 is a deficient number, since it is larger than the sum of its proper divisors (2407077).

3621723 is a wasteful number, since it uses less digits than its factorization.

3621723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its digits is 1512, while the sum is 24.

The square root of 3621723 is about 1903.0824995254. The cubic root of 3621723 is about 153.5695377552.

Adding to 3621723 its reverse (3271263), we get a palindrome (6892986).

The spelling of 3621723 in words is "three million, six hundred twenty-one thousand, seven hundred twenty-three".