49217217 has 24 divisors (see below), whose sum is σ = 79661376. Its totient is φ = 26899488.

The previous prime is 49217213. The next prime is 49217219. The reversal of 49217217 is 71271294.

It is not a de Polignac number, because 49217217 - 2² = 49217213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49217213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3898 + ... + 10659.

It is an arithmetic number, because the mean of its divisors is an integer number (3319224).

Almost surely, 2^49217217 is an apocalyptic number.

It is an amenable number.

49217217 is a deficient number, since it is larger than the sum of its proper divisors (30444159).

49217217 is a wasteful number, since it uses less digits than its factorization.

49217217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14597 (or 14590 counting only the distinct ones).

The product of its digits is 7056, while the sum is 33.

The square root of 49217217 is about 7015.4983429547. The cubic root of 49217217 is about 366.4704973624.

The spelling of 49217217 in words is "forty-nine million, two hundred seventeen thousand, two hundred seventeen".