76651489 has 2 divisors, whose sum is σ = 76651490. Its totient is φ = 76651488.

The previous prime is 76651481. The next prime is 76651493. The reversal of 76651489 is 98415667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76038400 + 613089 = 8720^2 + 783^2 .

It is a cyclic number.

It is not a de Polignac number, because 76651489 - 2³ = 76651481 is a prime.

It is not a weakly prime, because it can be changed into another prime (76651481) 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, 38325744 + 38325745.

It is an arithmetic number, because the mean of its divisors is an integer number (38325745).

Almost surely, 2^76651489 is an apocalyptic number.

It is an amenable number.

76651489 is a deficient number, since it is larger than the sum of its proper divisors (1).

76651489 is an equidigital number, since it uses as much as digits as its factorization.

76651489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 76651489 is about 8755.0836089668. The cubic root of 76651489 is about 424.7892639206.

The spelling of 76651489 in words is "seventy-six million, six hundred fifty-one thousand, four hundred eighty-nine".