3962071221 has 24 divisors (see below), whose sum is σ = 5664371040. Its totient is φ = 2462714112.

The previous prime is 3962071199. The next prime is 3962071249. The reversal of 3962071221 is 1221702693.

It is not a de Polignac number, because 3962071221 - 2¹⁵ = 3962038453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3962071271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71415 + ... + 114123.

It is an arithmetic number, because the mean of its divisors is an integer number (236015460).

Almost surely, 2^3962071221 is an apocalyptic number.

It is an amenable number.

3962071221 is a deficient number, since it is larger than the sum of its proper divisors (1702299819).

3962071221 is a wasteful number, since it uses less digits than its factorization.

3962071221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42853 (or 42836 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 3962071221 is about 62944.9856700278. The cubic root of 3962071221 is about 1582.3677607630.

The spelling of 3962071221 in words is "three billion, nine hundred sixty-two million, seventy-one thousand, two hundred twenty-one".