749189017 has 2 divisors, whose sum is σ = 749189018. Its totient is φ = 749189016.

The previous prime is 749189003. The next prime is 749189033. The reversal of 749189017 is 710981947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 685444761 + 63744256 = 26181^2 + 7984^2 .

It is a cyclic number.

It is not a de Polignac number, because 749189017 - 2⁷ = 749188889 is a prime.

It is a super-2 number, since 2×749189017² = 1122568366386852578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (749189087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374594508 + 374594509.

It is an arithmetic number, because the mean of its divisors is an integer number (374594509).

Almost surely, 2^749189017 is an apocalyptic number.

It is an amenable number.

749189017 is a deficient number, since it is larger than the sum of its proper divisors (1).

749189017 is an equidigital number, since it uses as much as digits as its factorization.

749189017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 749189017 is about 27371.3174144030. The cubic root of 749189017 is about 908.2326996631.

The spelling of 749189017 in words is "seven hundred forty-nine million, one hundred eighty-nine thousand, seventeen".