749696669 has 2 divisors, whose sum is σ = 749696670. Its totient is φ = 749696668.

The previous prime is 749696611. The next prime is 749696681. The reversal of 749696669 is 966696947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705964900 + 43731769 = 26570^2 + 6613^2 .

It is a cyclic number.

It is not a de Polignac number, because 749696669 - 2²⁰ = 748648093 is a prime.

It is a super-2 number, since 2×749696669² = 1124090191019391122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749696069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374848334 + 374848335.

It is an arithmetic number, because the mean of its divisors is an integer number (374848335).

Almost surely, 2^749696669 is an apocalyptic number.

It is an amenable number.

749696669 is a deficient number, since it is larger than the sum of its proper divisors (1).

749696669 is an equidigital number, since it uses as much as digits as its factorization.

749696669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 62.

The square root of 749696669 is about 27380.5892741555. The cubic root of 749696669 is about 908.4377934536.

The spelling of 749696669 in words is "seven hundred forty-nine million, six hundred ninety-six thousand, six hundred sixty-nine".