7968749 has 2 divisors, whose sum is σ = 7968750. Its totient is φ = 7968748.

The previous prime is 7968743. The next prime is 7968757. The reversal of 7968749 is 9478697.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6325225 + 1643524 = 2515^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 7968749 - 2¹⁶ = 7903213 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7968697 and 7968706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7968743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3984374 + 3984375.

It is an arithmetic number, because the mean of its divisors is an integer number (3984375).

Almost surely, 2^7968749 is an apocalyptic number.

It is an amenable number.

7968749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7968749 is an equidigital number, since it uses as much as digits as its factorization.

7968749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 50.

The square root of 7968749 is about 2822.8972705361. The cubic root of 7968749 is about 199.7392351562.

The spelling of 7968749 in words is "seven million, nine hundred sixty-eight thousand, seven hundred forty-nine".