76729469 has 2 divisors, whose sum is σ = 76729470. Its totient is φ = 76729468.

The previous prime is 76729423. The next prime is 76729493. The reversal of 76729469 is 96492767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73736569 + 2992900 = 8587^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 76729469 - 2²⁴ = 59952253 is a prime.

It is a super-2 number, since 2×76729469² = 11774822826043922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76729669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38364734 + 38364735.

It is an arithmetic number, because the mean of its divisors is an integer number (38364735).

Almost surely, 2^76729469 is an apocalyptic number.

It is an amenable number.

76729469 is a deficient number, since it is larger than the sum of its proper divisors (1).

76729469 is an equidigital number, since it uses as much as digits as its factorization.

76729469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 50.

The square root of 76729469 is about 8759.5358895320. The cubic root of 76729469 is about 424.9332656464.

The spelling of 76729469 in words is "seventy-six million, seven hundred twenty-nine thousand, four hundred sixty-nine".