755064643 has 2 divisors, whose sum is σ = 755064644. Its totient is φ = 755064642.

The previous prime is 755064637. The next prime is 755064647. The reversal of 755064643 is 346460557.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-755064643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 755064596 and 755064605.

It is not a weakly prime, because it can be changed into another prime (755064647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377532321 + 377532322.

It is an arithmetic number, because the mean of its divisors is an integer number (377532322).

Almost surely, 2^755064643 is an apocalyptic number.

755064643 is a deficient number, since it is larger than the sum of its proper divisors (1).

755064643 is an equidigital number, since it uses as much as digits as its factorization.

755064643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 755064643 is about 27478.4396027140. The cubic root of 755064643 is about 910.6008361478.

The spelling of 755064643 in words is "seven hundred fifty-five million, sixty-four thousand, six hundred forty-three".