34247739 has 4 divisors (see below), whose sum is σ = 45663656. Its totient is φ = 22831824.

The previous prime is 34247711. The next prime is 34247749. The reversal of 34247739 is 93774243.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 34247739 - 2¹¹ = 34245691 is a prime.

It is a super-2 number, since 2×34247739² = 2345815253224242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34247697 and 34247706.

It is not an unprimeable number, because it can be changed into a prime (34247749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5707954 + ... + 5707959.

It is an arithmetic number, because the mean of its divisors is an integer number (11415914).

Almost surely, 2^34247739 is an apocalyptic number.

34247739 is a deficient number, since it is larger than the sum of its proper divisors (11415917).

34247739 is a wasteful number, since it uses less digits than its factorization.

34247739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11415916.

The product of its digits is 127008, while the sum is 39.

The square root of 34247739 is about 5852.1567819053. The cubic root of 34247739 is about 324.7461180962.

The spelling of 34247739 in words is "thirty-four million, two hundred forty-seven thousand, seven hundred thirty-nine".