34788561 has 4 divisors (see below), whose sum is σ = 46384752. Its totient is φ = 23192372.

The previous prime is 34788557. The next prime is 34788569. The reversal of 34788561 is 16588743.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16588743 = 3 ⋅5529581.

It is a cyclic number.

It is not a de Polignac number, because 34788561 - 2² = 34788557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34788569) 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, 5798091 + ... + 5798096.

It is an arithmetic number, because the mean of its divisors is an integer number (11596188).

Almost surely, 2^34788561 is an apocalyptic number.

It is an amenable number.

34788561 is a deficient number, since it is larger than the sum of its proper divisors (11596191).

34788561 is a wasteful number, since it uses less digits than its factorization.

34788561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11596190.

The product of its digits is 161280, while the sum is 42.

The square root of 34788561 is about 5898.1828557616. The cubic root of 34788561 is about 326.4466039490.

The spelling of 34788561 in words is "thirty-four million, seven hundred eighty-eight thousand, five hundred sixty-one".