29706813 has 6 divisors (see below), whose sum is σ = 42909854. Its totient is φ = 19804536.

The previous prime is 29706811. The next prime is 29706821. The reversal of 29706813 is 31860792.

It can be written as a sum of positive squares in only one way, i.e., 28164249 + 1542564 = 5307^2 + 1242^2 .

It is not a de Polignac number, because 29706813 - 2¹ = 29706811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29706811) 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 5 ways as a sum of consecutive naturals, for example, 1650370 + ... + 1650387.

Almost surely, 2^29706813 is an apocalyptic number.

It is an amenable number.

29706813 is a deficient number, since it is larger than the sum of its proper divisors (13203041).

29706813 is a wasteful number, since it uses less digits than its factorization.

29706813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300763 (or 3300760 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 29706813 is about 5450.3956737103. The cubic root of 29706813 is about 309.7077127067.

The spelling of 29706813 in words is "twenty-nine million, seven hundred six thousand, eight hundred thirteen".