34487749 has 4 divisors (see below), whose sum is σ = 34666636. Its totient is φ = 34308864.

The previous prime is 34487743. The next prime is 34487771. The reversal of 34487749 is 94778443.

34487749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20930625 + 13557124 = 4575^2 + 3682^2 .

It is a cyclic number.

It is not a de Polignac number, because 34487749 - 2¹¹ = 34485701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34487699 and 34487708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34487743) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89154 + ... + 89539.

It is an arithmetic number, because the mean of its divisors is an integer number (8666659).

Almost surely, 2^34487749 is an apocalyptic number.

It is an amenable number.

34487749 is a deficient number, since it is larger than the sum of its proper divisors (178887).

34487749 is a wasteful number, since it uses less digits than its factorization.

34487749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178886.

The product of its digits is 677376, while the sum is 46.

The square root of 34487749 is about 5872.6270952615. The cubic root of 34487749 is about 325.5029655944.

The spelling of 34487749 in words is "thirty-four million, four hundred eighty-seven thousand, seven hundred forty-nine".