34387005 has 16 divisors (see below), whose sum is σ = 58256064. Its totient is φ = 17260800.

The previous prime is 34386991. The next prime is 34387007. The reversal of 34387005 is 50078343.

It is not a de Polignac number, because 34387005 - 2⁵ = 34386973 is a prime.

It is a super-2 number, since 2×34387005² = 2364932225740050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34387007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67171 + ... + 67680.

It is an arithmetic number, because the mean of its divisors is an integer number (3641004).

Almost surely, 2^34387005 is an apocalyptic number.

It is an amenable number.

34387005 is a deficient number, since it is larger than the sum of its proper divisors (23869059).

34387005 is a wasteful number, since it uses less digits than its factorization.

34387005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134876.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 34387005 is about 5864.0434002487. The cubic root of 34387005 is about 325.1857084597.

It can be divided in two parts, 3 and 4387005, that multiplied together give a triangular number (13161015 = T₅₁₃₀).

The spelling of 34387005 in words is "thirty-four million, three hundred eighty-seven thousand, five".