3906550 has 48 divisors (see below), whose sum is σ = 7856640. Its totient is φ = 1441440.

The previous prime is 3906547. The next prime is 3906557. The reversal of 3906550 is 556093.

It is a happy number.

It is a super-2 number, since 2×3906550² = 30522265805000, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3 + 9² + 0 + 6³ + 5⁹ + 5⁹ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49411 + ... + 49489.

It is an arithmetic number, because the mean of its divisors is an integer number (163680).

Almost surely, 2^3906550 is an apocalyptic number.

3906550 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

3906550 is a wasteful number, since it uses less digits than its factorization.

3906550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 3906550 is about 1976.4994308120. The cubic root of 3906550 is about 157.4941628810.

The spelling of 3906550 in words is "three million, nine hundred six thousand, five hundred fifty".