745686547 has 2 divisors, whose sum is σ = 745686548. Its totient is φ = 745686546.

The previous prime is 745686533. The next prime is 745686551.

745686547 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745686547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745686494 and 745686503.

It is not a weakly prime, because it can be changed into another prime (745686587) 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, 372843273 + 372843274.

It is an arithmetic number, because the mean of its divisors is an integer number (372843274).

Almost surely, 2^745686547 is an apocalyptic number.

745686547 is a deficient number, since it is larger than the sum of its proper divisors (1).

745686547 is an equidigital number, since it uses as much as digits as its factorization.

745686547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5644800, while the sum is 52.

The square root of 745686547 is about 27307.2617997484. The cubic root of 745686547 is about 906.8151544727.

The spelling of 745686547 in words is "seven hundred forty-five million, six hundred eighty-six thousand, five hundred forty-seven".