3857630 has 16 divisors (see below), whose sum is σ = 7935840. Its totient is φ = 1322592.

The previous prime is 3857621. The next prime is 3857641. The reversal of 3857630 is 367583.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27485 + ... + 27624.

It is an arithmetic number, because the mean of its divisors is an integer number (495990).

Almost surely, 2^3857630 is an apocalyptic number.

3857630 is an abundant number, since it is smaller than the sum of its proper divisors (4078210).

3857630 is a wasteful number, since it uses less digits than its factorization.

3857630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55123.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 3857630 is about 1964.0850287093. The cubic root of 3857630 is about 156.8339895339.

It can be divided in two parts, 3857 and 630, that multiplied together give a triangular number (2429910 = T₂₂₀₄).

The spelling of 3857630 in words is "three million, eight hundred fifty-seven thousand, six hundred thirty".