29749289 has 4 divisors (see below), whose sum is σ = 29773524. Its totient is φ = 29725056.

The previous prime is 29749283. The next prime is 29749339. The reversal of 29749289 is 98294792.

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 21529600 + 8219689 = 4640^2 + 2867^2 .

It is a cyclic number.

It is not a de Polignac number, because 29749289 - 2²⁴ = 12972073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29749283) 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, 10172 + ... + 12765.

It is an arithmetic number, because the mean of its divisors is an integer number (7443381).

Almost surely, 2^29749289 is an apocalyptic number.

It is an amenable number.

29749289 is a deficient number, since it is larger than the sum of its proper divisors (24235).

29749289 is a wasteful number, since it uses less digits than its factorization.

29749289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24234.

The product of its digits is 653184, while the sum is 50.

The square root of 29749289 is about 5454.2908796653. The cubic root of 29749289 is about 309.8552532710.

The spelling of 29749289 in words is "twenty-nine million, seven hundred forty-nine thousand, two hundred eighty-nine".