3991102 has 16 divisors (see below), whose sum is σ = 6359040. Its totient is φ = 1873368.

The previous prime is 3991093. The next prime is 3991103. The reversal of 3991102 is 2011993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3991103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4413 + ... + 5239.

It is an arithmetic number, because the mean of its divisors is an integer number (397440).

Almost surely, 2^3991102 is an apocalyptic number.

3991102 is a deficient number, since it is larger than the sum of its proper divisors (2367938).

3991102 is a wasteful number, since it uses less digits than its factorization.

3991102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 3991102 is about 1997.7742615221. The cubic root of 3991102 is about 158.6223120220.

The spelling of 3991102 in words is "three million, nine hundred ninety-one thousand, one hundred two".