3891950 has 12 divisors (see below), whose sum is σ = 7239120. Its totient is φ = 1556760.

The previous prime is 3891917. The next prime is 3891971. The reversal of 3891950 is 591983.

It is a self number, because there is not a number n which added to its sum of digits gives 3891950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38870 + ... + 38969.

It is an arithmetic number, because the mean of its divisors is an integer number (603260).

Almost surely, 2^3891950 is an apocalyptic number.

3891950 is a deficient number, since it is larger than the sum of its proper divisors (3347170).

3891950 is a wasteful number, since it uses less digits than its factorization.

3891950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77851 (or 77846 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 3891950 is about 1972.8025750186. The cubic root of 3891950 is about 157.2977162905.

The spelling of 3891950 in words is "three million, eight hundred ninety-one thousand, nine hundred fifty".