7691087321 has 8 divisors (see below), whose sum is σ = 7967249664. Its totient is φ = 7416678960.

The previous prime is 7691087309. The next prime is 7691087333. The reversal of 7691087321 is 1237801967.

It is an interprime number because it is at equal distance from previous prime (7691087309) and next prime (7691087333).

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 7691087321 - 2²² = 7686893017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7691087221) 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 7 ways as a sum of consecutive naturals, for example, 429566 + ... + 447111.

It is an arithmetic number, because the mean of its divisors is an integer number (995906208).

Almost surely, 2^7691087321 is an apocalyptic number.

It is an amenable number.

7691087321 is a deficient number, since it is larger than the sum of its proper divisors (276162343).

7691087321 is a wasteful number, since it uses less digits than its factorization.

7691087321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876991.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 7691087321 is about 87698.8444678720. The cubic root of 7691087321 is about 1973.9186364478.

The spelling of 7691087321 in words is "seven billion, six hundred ninety-one million, eighty-seven thousand, three hundred twenty-one".