29312973 has 6 divisors (see below), whose sum is σ = 42340974. Its totient is φ = 19541976.

The previous prime is 29312929. The next prime is 29312977. The reversal of 29312973 is 37921392.

It can be written as a sum of positive squares in only one way, i.e., 26347689 + 2965284 = 5133^2 + 1722^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29312973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29312977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1628490 + ... + 1628507.

It is an arithmetic number, because the mean of its divisors is an integer number (7056829).

Almost surely, 2^29312973 is an apocalyptic number.

It is an amenable number.

29312973 is a deficient number, since it is larger than the sum of its proper divisors (13028001).

29312973 is a wasteful number, since it uses less digits than its factorization.

29312973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257003 (or 3257000 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 29312973 is about 5414.1456389720. The cubic root of 29312973 is about 308.3329627136.

The spelling of 29312973 in words is "twenty-nine million, three hundred twelve thousand, nine hundred seventy-three".