76729589 has 2 divisors, whose sum is σ = 76729590. Its totient is φ = 76729588.

The previous prime is 76729577. The next prime is 76729649. The reversal of 76729589 is 98592767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58599025 + 18130564 = 7655^2 + 4258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76729589 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76729589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76729889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38364794 + 38364795.

It is an arithmetic number, because the mean of its divisors is an integer number (38364795).

Almost surely, 2^76729589 is an apocalyptic number.

It is an amenable number.

76729589 is a deficient number, since it is larger than the sum of its proper divisors (1).

76729589 is an equidigital number, since it uses as much as digits as its factorization.

76729589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 76729589 is about 8759.5427392073. The cubic root of 76729589 is about 424.9334871691.

The spelling of 76729589 in words is "seventy-six million, seven hundred twenty-nine thousand, five hundred eighty-nine".