4121864 has 8 divisors (see below), whose sum is σ = 7728510. Its totient is φ = 2060928.

The previous prime is 4121861. The next prime is 4121867. The reversal of 4121864 is 4681214.

4121864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4121861) and next prime (4121867).

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 917764 = 1790^2 + 958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (4121861) 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, 257609 + ... + 257624.

Almost surely, 2^4121864 is an apocalyptic number.

It is an amenable number.

4121864 is a deficient number, since it is larger than the sum of its proper divisors (3606646).

4121864 is a wasteful number, since it uses less digits than its factorization.

4121864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515239 (or 515235 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 4121864 is about 2030.2374245393. The cubic root of 4121864 is about 160.3360644683.

The spelling of 4121864 in words is "four million, one hundred twenty-one thousand, eight hundred sixty-four".