49967917 has 4 divisors (see below), whose sum is σ = 50007456. Its totient is φ = 49928380.

The previous prime is 49967881. The next prime is 49967933. The reversal of 49967917 is 71976994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49967917 - 2⁷ = 49967789 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 (49967977) 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, 17809 + ... + 20422.

It is an arithmetic number, because the mean of its divisors is an integer number (12501864).

Almost surely, 2^49967917 is an apocalyptic number.

It is an amenable number.

49967917 is a deficient number, since it is larger than the sum of its proper divisors (39539).

49967917 is a wasteful number, since it uses less digits than its factorization.

49967917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39538.

The product of its digits is 857304, while the sum is 52.

The square root of 49967917 is about 7068.7988371434. The cubic root of 49967917 is about 368.3243364828.

The spelling of 49967917 in words is "forty-nine million, nine hundred sixty-seven thousand, nine hundred seventeen".