76745447 has 2 divisors, whose sum is σ = 76745448. Its totient is φ = 76745446.

The previous prime is 76745413. The next prime is 76745479. The reversal of 76745447 is 74454767.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76745447 - 2¹⁴ = 76729063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76745398 and 76745407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76745147) 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, 38372723 + 38372724.

It is an arithmetic number, because the mean of its divisors is an integer number (38372724).

Almost surely, 2^76745447 is an apocalyptic number.

76745447 is a deficient number, since it is larger than the sum of its proper divisors (1).

76745447 is an equidigital number, since it uses as much as digits as its factorization.

76745447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 44.

The square root of 76745447 is about 8760.4478766785. The cubic root of 76745447 is about 424.9627593666.

The spelling of 76745447 in words is "seventy-six million, seven hundred forty-five thousand, four hundred forty-seven".