29917245 has 8 divisors (see below), whose sum is σ = 47867616. Its totient is φ = 15955856.

The previous prime is 29917243. The next prime is 29917259. The reversal of 29917245 is 54271992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29917245 - 2¹ = 29917243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29917243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997227 + ... + 997256.

It is an arithmetic number, because the mean of its divisors is an integer number (5983452).

Almost surely, 2^29917245 is an apocalyptic number.

It is an amenable number.

29917245 is a deficient number, since it is larger than the sum of its proper divisors (17950371).

29917245 is a wasteful number, since it uses less digits than its factorization.

29917245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994491.

The product of its digits is 45360, while the sum is 39.

The square root of 29917245 is about 5469.6658947325. The cubic root of 29917245 is about 310.4372774527.

The spelling of 29917245 in words is "twenty-nine million, nine hundred seventeen thousand, two hundred forty-five".