3705620 has 24 divisors (see below), whose sum is σ = 8051400. Its totient is φ = 1430912.

The previous prime is 3705619. The next prime is 3705623. The reversal of 3705620 is 265073.

It can be written as a sum of positive squares in 4 ways, for example, as 3844 + 3701776 = 62^2 + 1924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3705623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615 + ... + 3774.

It is an arithmetic number, because the mean of its divisors is an integer number (335475).

Almost surely, 2^3705620 is an apocalyptic number.

It is an amenable number.

3705620 is an abundant number, since it is smaller than the sum of its proper divisors (4345780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3705620 is a wasteful number, since it uses less digits than its factorization.

3705620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427 (or 6425 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 3705620 is about 1924.9987012983. The cubic root of 3705620 is about 154.7463071648.

The spelling of 3705620 in words is "three million, seven hundred five thousand, six hundred twenty".