7687133 has 2 divisors, whose sum is σ = 7687134. Its totient is φ = 7687132.

The previous prime is 7687123. The next prime is 7687139. The reversal of 7687133 is 3317867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3853369 + 3833764 = 1963^2 + 1958^2 .

It is a cyclic number.

It is not a de Polignac number, because 7687133 - 2¹² = 7683037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7687093 and 7687102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7687139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3843566 + 3843567.

It is an arithmetic number, because the mean of its divisors is an integer number (3843567).

Almost surely, 2^7687133 is an apocalyptic number.

It is an amenable number.

7687133 is a deficient number, since it is larger than the sum of its proper divisors (1).

7687133 is an equidigital number, since it uses as much as digits as its factorization.

7687133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 7687133 is about 2772.5679432613. The cubic root of 7687133 is about 197.3580286108.

The spelling of 7687133 in words is "seven million, six hundred eighty-seven thousand, one hundred thirty-three".