7661333 has 2 divisors, whose sum is σ = 7661334. Its totient is φ = 7661332.

The previous prime is 7661321. The next prime is 7661347. The reversal of 7661333 is 3331667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4761124 + 2900209 = 2182^2 + 1703^2 .

It is a cyclic number.

It is not a de Polignac number, because 7661333 - 2⁴ = 7661317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7661296 and 7661305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7661393) 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, 3830666 + 3830667.

It is an arithmetic number, because the mean of its divisors is an integer number (3830667).

Almost surely, 2^7661333 is an apocalyptic number.

It is an amenable number.

7661333 is a deficient number, since it is larger than the sum of its proper divisors (1).

7661333 is an equidigital number, since it uses as much as digits as its factorization.

7661333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 29.

The square root of 7661333 is about 2767.9113063825. The cubic root of 7661333 is about 197.1369863276.

The spelling of 7661333 in words is "seven million, six hundred sixty-one thousand, three hundred thirty-three".