29930823 has 32 divisors (see below), whose sum is σ = 48081600. Its totient is φ = 18292608.

The previous prime is 29930821. The next prime is 29930839. The reversal of 29930823 is 32803992.

It is not a de Polignac number, because 29930823 - 2¹ = 29930821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29930821) 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 31 ways as a sum of consecutive naturals, for example, 94261 + ... + 94577.

It is an arithmetic number, because the mean of its divisors is an integer number (1502550).

Almost surely, 2^29930823 is an apocalyptic number.

29930823 is a deficient number, since it is larger than the sum of its proper divisors (18150777).

29930823 is a wasteful number, since it uses less digits than its factorization.

29930823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 29930823 is about 5470.9069632009. The cubic root of 29930823 is about 310.4842345376.

The spelling of 29930823 in words is "twenty-nine million, nine hundred thirty thousand, eight hundred twenty-three".