3961250 has 20 divisors (see below), whose sum is σ = 7427310. Its totient is φ = 1584000.

The previous prime is 3961231. The next prime is 3961259. The reversal of 3961250 is 521693.

3961250 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 5 ways, for example, as 316969 + 3644281 = 563^2 + 1909^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3961259) 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 in 9 ways as a sum of consecutive naturals, for example, 335 + ... + 2834.

Almost surely, 2^3961250 is an apocalyptic number.

3961250 is a deficient number, since it is larger than the sum of its proper divisors (3466060).

3961250 is an equidigital number, since it uses as much as digits as its factorization.

3961250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191 (or 3176 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 3961250 is about 1990.2889237495. The cubic root of 3961250 is about 158.2258427088.

The spelling of 3961250 in words is "three million, nine hundred sixty-one thousand, two hundred fifty".