29023985 has 4 divisors (see below), whose sum is σ = 34828788. Its totient is φ = 23219184.

The previous prime is 29023949. The next prime is 29024033. The reversal of 29023985 is 58932092.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18809569 + 10214416 = 4337^2 + 3196^2 .

It is a cyclic number.

It is not a de Polignac number, because 29023985 - 2¹² = 29019889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 2902394 + ... + 2902403.

It is an arithmetic number, because the mean of its divisors is an integer number (8707197).

Almost surely, 2^29023985 is an apocalyptic number.

It is an amenable number.

29023985 is a deficient number, since it is larger than the sum of its proper divisors (5804803).

29023985 is an equidigital number, since it uses as much as digits as its factorization.

29023985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804802.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 29023985 is about 5387.3912982073. The cubic root of 29023985 is about 307.3163598249.

The spelling of 29023985 in words is "twenty-nine million, twenty-three thousand, nine hundred eighty-five".