7694884921 has 2 divisors, whose sum is σ = 7694884922. Its totient is φ = 7694884920.

The previous prime is 7694884919. The next prime is 7694884987. The reversal of 7694884921 is 1294884967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3926275600 + 3768609321 = 62660^2 + 61389^2 .

It is a cyclic number.

It is not a de Polignac number, because 7694884921 - 2¹ = 7694884919 is a prime.

It is a super-2 number, since 2×7694884921² (a number of 21 digits) contains 22 as substring.

Together with 7694884919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7694884121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3847442460 + 3847442461.

It is an arithmetic number, because the mean of its divisors is an integer number (3847442461).

Almost surely, 2^7694884921 is an apocalyptic number.

It is an amenable number.

7694884921 is a deficient number, since it is larger than the sum of its proper divisors (1).

7694884921 is an equidigital number, since it uses as much as digits as its factorization.

7694884921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 58.

The square root of 7694884921 is about 87720.4931643684. The cubic root of 7694884921 is about 1974.2434678471.

The spelling of 7694884921 in words is "seven billion, six hundred ninety-four million, eight hundred eighty-four thousand, nine hundred twenty-one".