29439023 has 4 divisors (see below), whose sum is σ = 29450568. Its totient is φ = 29427480.

The previous prime is 29438989. The next prime is 29439043. The reversal of 29439023 is 32093492.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 29439023 - 2¹² = 29434927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29439043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 7673.

It is an arithmetic number, because the mean of its divisors is an integer number (7362642).

Almost surely, 2^29439023 is an apocalyptic number.

29439023 is a deficient number, since it is larger than the sum of its proper divisors (11545).

29439023 is an equidigital number, since it uses as much as digits as its factorization.

29439023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11544.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 29439023 is about 5425.7739540088. The cubic root of 29439023 is about 308.7742894232.

The spelling of 29439023 in words is "twenty-nine million, four hundred thirty-nine thousand, twenty-three".