3688730 has 8 divisors (see below), whose sum is σ = 6639732. Its totient is φ = 1475488.

The previous prime is 3688709. The next prime is 3688757. The reversal of 3688730 is 378863.

It can be written as a sum of positive squares in 2 ways, for example, as 3568321 + 120409 = 1889^2 + 347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184427 + ... + 184446.

Almost surely, 2^3688730 is an apocalyptic number.

3688730 is a deficient number, since it is larger than the sum of its proper divisors (2951002).

3688730 is a wasteful number, since it uses less digits than its factorization.

3688730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368880.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3688730 is about 1920.6066749858. The cubic root of 3688730 is about 154.5108408378.

The spelling of 3688730 in words is "three million, six hundred eighty-eight thousand, seven hundred thirty".