749999867 has 2 divisors, whose sum is σ = 749999868. Its totient is φ = 749999866.

The previous prime is 749999857. The next prime is 749999923. The reversal of 749999867 is 768999947.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 749999867 - 2⁸ = 749999611 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 749999797 and 749999806.

It is not a weakly prime, because it can be changed into another prime (749999857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374999933 + 374999934.

It is an arithmetic number, because the mean of its divisors is an integer number (374999934).

Almost surely, 2^749999867 is an apocalyptic number.

749999867 is a deficient number, since it is larger than the sum of its proper divisors (1).

749999867 is an equidigital number, since it uses as much as digits as its factorization.

749999867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 68.

The square root of 749999867 is about 27386.1254470215. The cubic root of 749999867 is about 908.5602427101.

The spelling of 749999867 in words is "seven hundred forty-nine million, nine hundred ninety-nine thousand, eight hundred sixty-seven".