34729213 has 4 divisors (see below), whose sum is σ = 34742908. Its totient is φ = 34715520.

The previous prime is 34729187. The next prime is 34729217. The reversal of 34729213 is 31292743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31292743 = 83 ⋅377021.

It can be written as a sum of positive squares in 2 ways, for example, as 25836889 + 8892324 = 5083^2 + 2982^2 .

It is a cyclic number.

It is not a de Polignac number, because 34729213 - 2²⁵ = 1174781 is a prime.

It is a super-2 number, since 2×34729213² = 2412236471198738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34729217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806 + ... + 8527.

It is an arithmetic number, because the mean of its divisors is an integer number (8685727).

Almost surely, 2^34729213 is an apocalyptic number.

It is an amenable number.

34729213 is a deficient number, since it is larger than the sum of its proper divisors (13695).

34729213 is a wasteful number, since it uses less digits than its factorization.

34729213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13694.

The product of its digits is 9072, while the sum is 31.

The square root of 34729213 is about 5893.1496671983. The cubic root of 34729213 is about 326.2608630040.

The spelling of 34729213 in words is "thirty-four million, seven hundred twenty-nine thousand, two hundred thirteen".