29429993 has 4 divisors (see below), whose sum is σ = 30978960. Its totient is φ = 27881028.

The previous prime is 29429989. The next prime is 29430061. The reversal of 29429993 is 39992492.

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 29429993 - 2² = 29429989 is a prime.

It is a super-2 number, since 2×29429993² = 1732248975960098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29429093) 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, 774455 + ... + 774492.

It is an arithmetic number, because the mean of its divisors is an integer number (7744740).

Almost surely, 2^29429993 is an apocalyptic number.

It is an amenable number.

29429993 is a deficient number, since it is larger than the sum of its proper divisors (1548967).

29429993 is a wasteful number, since it uses less digits than its factorization.

29429993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548966.

The product of its digits is 314928, while the sum is 47.

The square root of 29429993 is about 5424.9417508394. The cubic root of 29429993 is about 308.7427154930.

The spelling of 29429993 in words is "twenty-nine million, four hundred twenty-nine thousand, nine hundred ninety-three".