29938993 has 4 divisors (see below), whose sum is σ = 34216000. Its totient is φ = 25661988.

The previous prime is 29938981. The next prime is 29938999. The reversal of 29938993 is 39983992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29938993 - 2²¹ = 27841841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29938993.

It is not an unprimeable number, because it can be changed into a prime (29938999) 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, 2138493 + ... + 2138506.

It is an arithmetic number, because the mean of its divisors is an integer number (8554000).

Almost surely, 2^29938993 is an apocalyptic number.

It is an amenable number.

29938993 is a deficient number, since it is larger than the sum of its proper divisors (4277007).

29938993 is an equidigital number, since it uses as much as digits as its factorization.

29938993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277006.

The product of its digits is 944784, while the sum is 52.

The square root of 29938993 is about 5471.6535891812. The cubic root of 29938993 is about 310.5124821786.

The spelling of 29938993 in words is "twenty-nine million, nine hundred thirty-eight thousand, nine hundred ninety-three".