76429789 has 2 divisors, whose sum is σ = 76429790. Its totient is φ = 76429788.

The previous prime is 76429783. The next prime is 76429861. The reversal of 76429789 is 98792467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76422564 + 7225 = 8742^2 + 85^2 .

It is an emirp because it is prime and its reverse (98792467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76429789 - 2⁵ = 76429757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76429783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38214894 + 38214895.

It is an arithmetic number, because the mean of its divisors is an integer number (38214895).

Almost surely, 2^76429789 is an apocalyptic number.

It is an amenable number.

76429789 is a deficient number, since it is larger than the sum of its proper divisors (1).

76429789 is an equidigital number, since it uses as much as digits as its factorization.

76429789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 52.

The square root of 76429789 is about 8742.4132251913. The cubic root of 76429789 is about 424.3793274560.

The spelling of 76429789 in words is "seventy-six million, four hundred twenty-nine thousand, seven hundred eighty-nine".