29011993 has 16 divisors (see below), whose sum is σ = 32123520. Its totient is φ = 26078976.

The previous prime is 29011991. The next prime is 29012003. The reversal of 29011993 is 39911092.

It is a cyclic number.

It is not a de Polignac number, because 29011993 - 2¹ = 29011991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29011991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85921 + ... + 86257.

It is an arithmetic number, because the mean of its divisors is an integer number (2007720).

Almost surely, 2^29011993 is an apocalyptic number.

29011993 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29011993 is a deficient number, since it is larger than the sum of its proper divisors (3111527).

29011993 is a wasteful number, since it uses less digits than its factorization.

29011993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 29011993 is about 5386.2782141289. The cubic root of 29011993 is about 307.2740287957.

The spelling of 29011993 in words is "twenty-nine million, eleven thousand, nine hundred ninety-three".