3943222920025 has 9 divisors (see below), whose sum is σ = 4889608732543. Its totient is φ = 3154570393000.

The previous prime is 3943222920019. The next prime is 3943222920061. The reversal of 3943222920025 is 5200292223493.

The square root of 3943222920025 is 1985755.

It is a perfect power (a square), and thus also a powerful number.

3943222920025 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., 1419560251209 + 2523662668816 = 1191453^2 + 1588604^2 .

It is not a de Polignac number, because 3943222920025 - 2⁷ = 3943222919897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9730200 + ... + 10127350.

Almost surely, 2^{3943222920025} is an apocalyptic number.

3943222920025 is the 1985755-th square number.

3943222920025 is the 992878-th centered octagonal number.

It is an amenable number.

3943222920025 is a deficient number, since it is larger than the sum of its proper divisors (946385812518).

3943222920025 is an frugal number, since it uses more digits than its factorization.

3943222920025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794312 (or 397156 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 3943222920025 in words is "three trillion, nine hundred forty-three billion, two hundred twenty-two million, nine hundred twenty thousand, twenty-five".