3955026321 has 9 divisors (see below), whose sum is σ = 5713088329. Its totient is φ = 2636558436.

The previous prime is 3955026307. The next prime is 3955026389. The reversal of 3955026321 is 1236205593.

The square root of 3955026321 is 62889.

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

3955026321 is a `hidden beast` number, since 3 + 95 + 502 + 63 + 2 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is a de Polignac number, because none of the positive numbers 2^k-3955026321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3955026521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 178186 + ... + 199148.

Almost surely, 2^3955026321 is an apocalyptic number.

3955026321 is the 62889-th square number.

3955026321 is the 31445-th centered octagonal number.

It is an amenable number.

3955026321 is a deficient number, since it is larger than the sum of its proper divisors (1758062008).

3955026321 is an frugal number, since it uses more digits than its factorization.

3955026321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41932 (or 20966 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The cubic root of 3955026321 is about 1581.4293428084.

Multiplying 3955026321 by its sum of digits (36), we get a square (142380947556 = 377334²).

The spelling of 3955026321 in words is "three billion, nine hundred fifty-five million, twenty-six thousand, three hundred twenty-one".