3951284 has 6 divisors (see below), whose sum is σ = 6914754. Its totient is φ = 1975640.

The previous prime is 3951281. The next prime is 3951301. The reversal of 3951284 is 4821593.

3951284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 62500 = 1972^2 + 250^2 .

It is a super-2 number, since 2×3951284² = 31225290497312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3951284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3951281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493907 + ... + 493914.

It is an arithmetic number, because the mean of its divisors is an integer number (1152459).

Almost surely, 2^3951284 is an apocalyptic number.

It is an amenable number.

3951284 is a deficient number, since it is larger than the sum of its proper divisors (2963470).

3951284 is a wasteful number, since it uses less digits than its factorization.

3951284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987825 (or 987823 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 3951284 is about 1987.7836904452. The cubic root of 3951284 is about 158.0930392580.

The spelling of 3951284 in words is "three million, nine hundred fifty-one thousand, two hundred eighty-four".