3623705 has 12 divisors (see below), whose sum is σ = 4460652. Its totient is φ = 2825280.

The previous prime is 3623701. The next prime is 3623707. The reversal of 3623705 is 5073263.

It can be written as a sum of positive squares in 6 ways, for example, as 104329 + 3519376 = 323^2 + 1876^2 .

It is not a de Polignac number, because 3623705 - 2² = 3623701 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3623701) 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, 33191 + ... + 33299.

It is an arithmetic number, because the mean of its divisors is an integer number (371721).

Almost surely, 2^3623705 is an apocalyptic number.

It is an amenable number.

3623705 is a deficient number, since it is larger than the sum of its proper divisors (836947).

3623705 is an equidigital number, since it uses as much as digits as its factorization.

3623705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 3623705 is about 1903.6031624265. The cubic root of 3623705 is about 153.5975464606.

Adding to 3623705 its reverse (5073263), we get a palindrome (8696968).

The spelling of 3623705 in words is "three million, six hundred twenty-three thousand, seven hundred five".