49669217 has 4 divisors (see below), whose sum is σ = 53489940. Its totient is φ = 45848496.

The previous prime is 49669201. The next prime is 49669231. The reversal of 49669217 is 71296694.

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 9928801 + 39740416 = 3151^2 + 6304^2 .

It is a cyclic number.

It is not a de Polignac number, because 49669217 - 2⁴ = 49669201 is a prime.

It is a super-2 number, since 2×49669217² = 4934062234786178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49669237) 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, 1910342 + ... + 1910367.

It is an arithmetic number, because the mean of its divisors is an integer number (13372485).

Almost surely, 2^49669217 is an apocalyptic number.

It is an amenable number.

49669217 is a deficient number, since it is larger than the sum of its proper divisors (3820723).

49669217 is a wasteful number, since it uses less digits than its factorization.

49669217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820722.

The product of its digits is 163296, while the sum is 44.

The square root of 49669217 is about 7047.6391082404. The cubic root of 49669217 is about 367.5889417134.

The spelling of 49669217 in words is "forty-nine million, six hundred sixty-nine thousand, two hundred seventeen".