3869650 has 24 divisors (see below), whose sum is σ = 7252884. Its totient is φ = 1536000.

The previous prime is 3869647. The next prime is 3869653. The reversal of 3869650 is 569683.

It is an interprime number because it is at equal distance from previous prime (3869647) and next prime (3869653).

It can be written as a sum of positive squares in 6 ways, for example, as 2187441 + 1682209 = 1479^2 + 1297^2 .

It is a super-2 number, since 2×3869650² = 29948382245000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869653) 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, 9450 + ... + 9850.

Almost surely, 2^3869650 is an apocalyptic number.

3869650 is a deficient number, since it is larger than the sum of its proper divisors (3383234).

3869650 is a wasteful number, since it uses less digits than its factorization.

3869650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 3869650 is about 1967.1425977798. The cubic root of 3869650 is about 156.9967137938.

It can be divided in two parts, 386 and 9650, that multiplied together give a square (3724900 = 1930²).

The spelling of 3869650 in words is "three million, eight hundred sixty-nine thousand, six hundred fifty".