7928969 has 2 divisors, whose sum is σ = 7928970. Its totient is φ = 7928968.

The previous prime is 7928941. The next prime is 7929007. The reversal of 7928969 is 9698297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7772944 + 156025 = 2788^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 7928969 - 2¹⁶ = 7863433 is a prime.

It is a super-2 number, since 2×7928969² = 125737098805922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7928929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3964484 + 3964485.

It is an arithmetic number, because the mean of its divisors is an integer number (3964485).

Almost surely, 2^7928969 is an apocalyptic number.

It is an amenable number.

7928969 is a deficient number, since it is larger than the sum of its proper divisors (1).

7928969 is an equidigital number, since it uses as much as digits as its factorization.

7928969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 50.

The square root of 7928969 is about 2815.8425026979. The cubic root of 7928969 is about 199.4063144310.

The spelling of 7928969 in words is "seven million, nine hundred twenty-eight thousand, nine hundred sixty-nine".