749896691 has 2 divisors, whose sum is σ = 749896692. Its totient is φ = 749896690.

The previous prime is 749896663. The next prime is 749896709. The reversal of 749896691 is 196698947.

It is a strong prime.

It is an emirp because it is prime and its reverse (196698947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 749896691 - 2⁶ = 749896627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 749896691.

It is not a weakly prime, because it can be changed into another prime (749896291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374948345 + 374948346.

It is an arithmetic number, because the mean of its divisors is an integer number (374948346).

Almost surely, 2^749896691 is an apocalyptic number.

749896691 is a deficient number, since it is larger than the sum of its proper divisors (1).

749896691 is an equidigital number, since it uses as much as digits as its factorization.

749896691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 749896691 is about 27384.2416546451. The cubic root of 749896691 is about 908.5185778535.

The spelling of 749896691 in words is "seven hundred forty-nine million, eight hundred ninety-six thousand, six hundred ninety-one".