7832061221 has 4 divisors (see below), whose sum is σ = 7838866944. Its totient is φ = 7825255500.

The previous prime is 7832061217. The next prime is 7832061239. The reversal of 7832061221 is 1221602387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1221602387 = 10559 ⋅115693.

It is a cyclic number.

It is not a de Polignac number, because 7832061221 - 2² = 7832061217 is a prime.

It is a super-2 number, since 2×7832061221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7832061271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401135 + ... + 3403436.

It is an arithmetic number, because the mean of its divisors is an integer number (1959716736).

Almost surely, 2^7832061221 is an apocalyptic number.

It is an amenable number.

7832061221 is a deficient number, since it is larger than the sum of its proper divisors (6805723).

7832061221 is a wasteful number, since it uses less digits than its factorization.

7832061221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805722.

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

The square root of 7832061221 is about 88498.9334455506. The cubic root of 7832061221 is about 1985.9060148441.

The spelling of 7832061221 in words is "seven billion, eight hundred thirty-two million, sixty-one thousand, two hundred twenty-one".