29864137 has 4 divisors (see below), whose sum is σ = 29879236. Its totient is φ = 29849040.

The previous prime is 29864117. The next prime is 29864167. The reversal of 29864137 is 73146892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18412681 + 11451456 = 4291^2 + 3384^2 .

It is a cyclic number.

It is not a de Polignac number, because 29864137 - 2¹⁵ = 29831369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29864137.

It is not an unprimeable number, because it can be changed into a prime (29864117) 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 3 ways as a sum of consecutive naturals, for example, 4038 + ... + 8719.

It is an arithmetic number, because the mean of its divisors is an integer number (7469809).

Almost surely, 2^29864137 is an apocalyptic number.

It is an amenable number.

29864137 is a deficient number, since it is larger than the sum of its proper divisors (15099).

29864137 is a wasteful number, since it uses less digits than its factorization.

29864137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15098.

The product of its digits is 72576, while the sum is 40.

The square root of 29864137 is about 5464.8089628092. The cubic root of 29864137 is about 310.2534763475.

The spelling of 29864137 in words is "twenty-nine million, eight hundred sixty-four thousand, one hundred thirty-seven".