747449 has 2 divisors, whose sum is σ = 747450. Its totient is φ = 747448.

The previous prime is 747427. The next prime is 747451. The reversal of 747449 is 944747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 692224 + 55225 = 832^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 747449 - 2¹⁶ = 681913 is a prime.

Together with 747451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (747499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373724 + 373725.

It is an arithmetic number, because the mean of its divisors is an integer number (373725).

2⁷⁴⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

747449 is a deficient number, since it is larger than the sum of its proper divisors (1).

747449 is an equidigital number, since it uses as much as digits as its factorization.

747449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 747449 is about 864.5513287249. The cubic root of 747449 is about 90.7529020820.

The spelling of 747449 in words is "seven hundred forty-seven thousand, four hundred forty-nine".