34247749 has 2 divisors, whose sum is σ = 34247750. Its totient is φ = 34247748.

The previous prime is 34247711. The next prime is 34247797. The reversal of 34247749 is 94774243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33558849 + 688900 = 5793^2 + 830^2 .

It is an emirp because it is prime and its reverse (94774243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34247749 - 2²⁵ = 693317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34247149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17123874 + 17123875.

It is an arithmetic number, because the mean of its divisors is an integer number (17123875).

Almost surely, 2^34247749 is an apocalyptic number.

It is an amenable number.

34247749 is a deficient number, since it is larger than the sum of its proper divisors (1).

34247749 is an equidigital number, since it uses as much as digits as its factorization.

34247749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 40.

The square root of 34247749 is about 5852.1576362911. The cubic root of 34247749 is about 324.7461497038.

The spelling of 34247749 in words is "thirty-four million, two hundred forty-seven thousand, seven hundred forty-nine".