3979854 has 48 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 1253880.

The previous prime is 3979849. The next prime is 3979861. The reversal of 3979854 is 4589793.

It is a super-2 number, since 2×3979854² = 31678475722632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9019 + ... + 9449.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^3979854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3979854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4717440).

3979854 is an abundant number, since it is smaller than the sum of its proper divisors (5455026).

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

3979854 is a wasteful number, since it uses less digits than its factorization.

3979854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 455 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3979854 is about 1994.9571423968. The cubic root of 3979854 is about 158.4731583548.

The spelling of 3979854 in words is "three million, nine hundred seventy-nine thousand, eight hundred fifty-four".