8032761221 has 8 divisors (see below), whose sum is σ = 8049888000. Its totient is φ = 8015650720.

The previous prime is 8032761181. The next prime is 8032761241. The reversal of 8032761221 is 1221672308.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8032761221 - 2¹⁸ = 8032499077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8032761241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578401 + ... + 1583481.

It is an arithmetic number, because the mean of its divisors is an integer number (1006236000).

Almost surely, 2^8032761221 is an apocalyptic number.

It is an amenable number.

8032761221 is a deficient number, since it is larger than the sum of its proper divisors (17126779).

8032761221 is a wasteful number, since it uses less digits than its factorization.

8032761221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8139.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8032761221 is about 89625.6727785069. The cubic root of 8032761221 is about 2002.7263834778.

The spelling of 8032761221 in words is "eight billion, thirty-two million, seven hundred sixty-one thousand, two hundred twenty-one".