3706628 has 6 divisors (see below), whose sum is σ = 6486606. Its totient is φ = 1853312.

The previous prime is 3706627. The next prime is 3706631. The reversal of 3706628 is 8266073.

It can be written as a sum of positive squares in only one way, i.e., 3694084 + 12544 = 1922^2 + 112^2 .

It is a super-2 number, since 2×3706628² = 27478182260768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3706594 and 3706603.

It is not an unprimeable number, because it can be changed into a prime (3706621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463325 + ... + 463332.

It is an arithmetic number, because the mean of its divisors is an integer number (1081101).

Almost surely, 2^3706628 is an apocalyptic number.

It is an amenable number.

3706628 is a deficient number, since it is larger than the sum of its proper divisors (2779978).

3706628 is a wasteful number, since it uses less digits than its factorization.

3706628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926661 (or 926659 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 3706628 is about 1925.2605018542. The cubic root of 3706628 is about 154.7603372179.

It can be divided in two parts, 3706 and 628, that added together give a palindrome (4334).

The spelling of 3706628 in words is "three million, seven hundred six thousand, six hundred twenty-eight".