749374397 has 2 divisors, whose sum is σ = 749374398. Its totient is φ = 749374396.

The previous prime is 749374391. The next prime is 749374411. The reversal of 749374397 is 793473947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 747967801 + 1406596 = 27349^2 + 1186^2 .

It is a cyclic number.

It is not a de Polignac number, because 749374397 - 2⁸ = 749374141 is a prime.

It is a super-2 number, since 2×749374397² = 1123123973758227218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749374391) 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, 374687198 + 374687199.

It is an arithmetic number, because the mean of its divisors is an integer number (374687199).

Almost surely, 2^749374397 is an apocalyptic number.

It is an amenable number.

749374397 is a deficient number, since it is larger than the sum of its proper divisors (1).

749374397 is an equidigital number, since it uses as much as digits as its factorization.

749374397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000752, while the sum is 53.

The square root of 749374397 is about 27374.7035965689. The cubic root of 749374397 is about 908.3076047889.

The spelling of 749374397 in words is "seven hundred forty-nine million, three hundred seventy-four thousand, three hundred ninety-seven".