7997432893 has 16 divisors (see below), whose sum is σ = 8506080000. Its totient is φ = 7493121792.

The previous prime is 7997432887. The next prime is 7997432903. The reversal of 7997432893 is 3982347997.

7997432893 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7997432893 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 (7997432843) 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 15 ways as a sum of consecutive naturals, for example, 4469443 + ... + 4471231.

It is an arithmetic number, because the mean of its divisors is an integer number (531630000).

Almost surely, 2^7997432893 is an apocalyptic number.

It is an amenable number.

7997432893 is a deficient number, since it is larger than the sum of its proper divisors (508647107).

7997432893 is a wasteful number, since it uses less digits than its factorization.

7997432893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844.

The product of its digits is 20575296, while the sum is 61.

The square root of 7997432893 is about 89428.3673841807. The cubic root of 7997432893 is about 1999.7860515305.

The spelling of 7997432893 in words is "seven billion, nine hundred ninety-seven million, four hundred thirty-two thousand, eight hundred ninety-three".