49321217 has 16 divisors (see below), whose sum is σ = 56609280. Its totient is φ = 42556800.

The previous prime is 49321183. The next prime is 49321247. The reversal of 49321217 is 71212394.

It is a de Polignac number, because none of the positive numbers 2^k-49321217 is a prime.

It is a super-2 number, since 2×49321217² = 4865164892722178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49321217.

It is not an unprimeable number, because it can be changed into a prime (49321247) 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, 16709 + ... + 19437.

It is an arithmetic number, because the mean of its divisors is an integer number (3538080).

Almost surely, 2^49321217 is an apocalyptic number.

It is an amenable number.

49321217 is a deficient number, since it is larger than the sum of its proper divisors (7288063).

49321217 is a wasteful number, since it uses less digits than its factorization.

49321217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824.

The product of its digits is 3024, while the sum is 29.

The square root of 49321217 is about 7022.9065920031. The cubic root of 49321217 is about 366.7284431266.

The spelling of 49321217 in words is "forty-nine million, three hundred twenty-one thousand, two hundred seventeen".