29312997 has 32 divisors (see below), whose sum is σ = 46694400. Its totient is φ = 16003008.

The previous prime is 29312977. The next prime is 29313013. The reversal of 29312997 is 79921392.

It is a happy number.

It is not a de Polignac number, because 29312997 - 2¹¹ = 29310949 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 77154 + ... + 77532.

It is an arithmetic number, because the mean of its divisors is an integer number (1459200).

Almost surely, 2^29312997 is an apocalyptic number.

It is an amenable number.

29312997 is a deficient number, since it is larger than the sum of its proper divisors (17381403).

29312997 is a wasteful number, since it uses less digits than its factorization.

29312997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its digits is 61236, while the sum is 42.

The square root of 29312997 is about 5414.1478553878. The cubic root of 29312997 is about 308.3330468628. Note that the first 3 decimals are identical.

The spelling of 29312997 in words is "twenty-nine million, three hundred twelve thousand, nine hundred ninety-seven".