34870905 has 40 divisors (see below), whose sum is σ = 64686600. Its totient is φ = 17950464.

The previous prime is 34870897. The next prime is 34870919. The reversal of 34870905 is 50907843.

It can be written as a sum of positive squares in 4 ways, for example, as 13689 + 34857216 = 117^2 + 5904^2 .

It is not a de Polignac number, because 34870905 - 2³ = 34870897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34870905.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 10261 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (1617165).

Almost surely, 2^34870905 is an apocalyptic number.

It is an amenable number.

34870905 is a deficient number, since it is larger than the sum of its proper divisors (29815695).

34870905 is a wasteful number, since it uses less digits than its factorization.

34870905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 3006 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 34870905 is about 5905.1591849839. The cubic root of 34870905 is about 326.7039657304.

It can be divided in two parts, 348 and 70905, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 34870905 in words is "thirty-four million, eight hundred seventy thousand, nine hundred five".