3900650 has 48 divisors (see below), whose sum is σ = 8296344. Its totient is φ = 1351680.

The previous prime is 3900649. The next prime is 3900679. The reversal of 3900650 is 560093.

It can be written as a sum of positive squares in 12 ways, for example, as 94249 + 3806401 = 307^2 + 1951^2 .

It is a super-3 number, since 3×3900650³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10874 + ... + 11226.

Almost surely, 2^3900650 is an apocalyptic number.

3900650 is an abundant number, since it is smaller than the sum of its proper divisors (4395694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3900650 is a wasteful number, since it uses less digits than its factorization.

3900650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 3900650 is about 1975.0063291038. The cubic root of 3900650 is about 157.4148359602.

The spelling of 3900650 in words is "three million, nine hundred thousand, six hundred fifty".