76967489 has 2 divisors, whose sum is σ = 76967490. Its totient is φ = 76967488.

The previous prime is 76967419. The next prime is 76967491. The reversal of 76967489 is 98476967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69222400 + 7745089 = 8320^2 + 2783^2 .

It is an emirp because it is prime and its reverse (98476967) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76967489 is a prime.

Together with 76967491, 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 (76967419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38483744 + 38483745.

It is an arithmetic number, because the mean of its divisors is an integer number (38483745).

Almost surely, 2^76967489 is an apocalyptic number.

It is an amenable number.

76967489 is a deficient number, since it is larger than the sum of its proper divisors (1).

76967489 is an equidigital number, since it uses as much as digits as its factorization.

76967489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 56.

The square root of 76967489 is about 8773.1117056607. Note that the first 3 decimals coincide. The cubic root of 76967489 is about 425.3722026603.

The spelling of 76967489 in words is "seventy-six million, nine hundred sixty-seven thousand, four hundred eighty-nine".