67799489 has 2 divisors, whose sum is σ = 67799490. Its totient is φ = 67799488.

The previous prime is 67799483. The next prime is 67799491. The reversal of 67799489 is 98499776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63473089 + 4326400 = 7967^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 67799489 - 2⁸ = 67799233 is a prime.

It is a super-2 number, since 2×67799489² = 9193541417322242, which contains 22 as substring.

Together with 67799491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67799483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33899744 + 33899745.

It is an arithmetic number, because the mean of its divisors is an integer number (33899745).

Almost surely, 2^67799489 is an apocalyptic number.

It is an amenable number.

67799489 is a deficient number, since it is larger than the sum of its proper divisors (1).

67799489 is an equidigital number, since it uses as much as digits as its factorization.

67799489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 59.

The square root of 67799489 is about 8234.0445104456. The cubic root of 67799489 is about 407.7639305418.

The spelling of 67799489 in words is "sixty-seven million, seven hundred ninety-nine thousand, four hundred eighty-nine".