49668917 has 8 divisors (see below), whose sum is σ = 53874072. Its totient is φ = 45606400.

The previous prime is 49668889. The next prime is 49668919. The reversal of 49668917 is 71986694.

It can be written as a sum of positive squares in 4 ways, for example, as 2869636 + 46799281 = 1694^2 + 6841^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49668917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49668919) 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, 34934 + ... + 36327.

It is an arithmetic number, because the mean of its divisors is an integer number (6734259).

Almost surely, 2^49668917 is an apocalyptic number.

It is an amenable number.

49668917 is a deficient number, since it is larger than the sum of its proper divisors (4205155).

49668917 is a wasteful number, since it uses less digits than its factorization.

49668917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71319.

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

The square root of 49668917 is about 7047.6178244851. The cubic root of 49668917 is about 367.5882016379.

The spelling of 49668917 in words is "forty-nine million, six hundred sixty-eight thousand, nine hundred seventeen".