29315423 has 4 divisors (see below), whose sum is σ = 30858360. Its totient is φ = 27772488.

The previous prime is 29315411. The next prime is 29315431. The reversal of 29315423 is 32451392.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29315423 - 2¹² = 29311327 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 (29315453) 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 3 ways as a sum of consecutive naturals, for example, 771440 + ... + 771477.

It is an arithmetic number, because the mean of its divisors is an integer number (7714590).

Almost surely, 2^29315423 is an apocalyptic number.

29315423 is a deficient number, since it is larger than the sum of its proper divisors (1542937).

29315423 is a wasteful number, since it uses less digits than its factorization.

29315423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542936.

The product of its digits is 6480, while the sum is 29.

The square root of 29315423 is about 5414.3718933963. The cubic root of 29315423 is about 308.3415527068.

The spelling of 29315423 in words is "twenty-nine million, three hundred fifteen thousand, four hundred twenty-three".