29923997 has 2 divisors, whose sum is σ = 29923998. Its totient is φ = 29923996.

The previous prime is 29923991. The next prime is 29924003. The reversal of 29923997 is 79932992.

It is a balanced prime because it is at equal distance from previous prime (29923991) and next prime (29924003).

It can be written as a sum of positive squares in only one way, i.e., 29528356 + 395641 = 5434^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 29923997 - 2⁴ = 29923981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29923991) 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 as a sum of consecutive naturals, namely, 14961998 + 14961999.

It is an arithmetic number, because the mean of its divisors is an integer number (14961999).

Almost surely, 2^29923997 is an apocalyptic number.

It is an amenable number.

29923997 is a deficient number, since it is larger than the sum of its proper divisors (1).

29923997 is an equidigital number, since it uses as much as digits as its factorization.

29923997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 50.

The square root of 29923997 is about 5470.2830822545. The cubic root of 29923997 is about 310.4606298128.

The spelling of 29923997 in words is "twenty-nine million, nine hundred twenty-three thousand, nine hundred ninety-seven".