749007691 has 2 divisors, whose sum is σ = 749007692. Its totient is φ = 749007690.

The previous prime is 749007671. The next prime is 749007703. The reversal of 749007691 is 196700947.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 749007691 - 2⁵ = 749007659 is a prime.

It is a super-2 number, since 2×749007691² = 1122025042354302962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (749007631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374503845 + 374503846.

It is an arithmetic number, because the mean of its divisors is an integer number (374503846).

Almost surely, 2^749007691 is an apocalyptic number.

749007691 is a deficient number, since it is larger than the sum of its proper divisors (1).

749007691 is an equidigital number, since it uses as much as digits as its factorization.

749007691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 749007691 is about 27368.0048779592. The cubic root of 749007691 is about 908.1594206521.

The spelling of 749007691 in words is "seven hundred forty-nine million, seven thousand, six hundred ninety-one".