49879865 has 8 divisors (see below), whose sum is σ = 68406720. Its totient is φ = 34203312.

The previous prime is 49879849. The next prime is 49879867. The reversal of 49879865 is 56897894.

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

It is a cyclic number.

It is not a de Polignac number, because 49879865 - 2⁴ = 49879849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49879865.

It is not an unprimeable number, because it can be changed into a prime (49879867) 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, 712535 + ... + 712604.

It is an arithmetic number, because the mean of its divisors is an integer number (8550840).

Almost surely, 2^49879865 is an apocalyptic number.

It is an amenable number.

49879865 is a deficient number, since it is larger than the sum of its proper divisors (18526855).

49879865 is a wasteful number, since it uses less digits than its factorization.

49879865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425151.

The product of its digits is 4354560, while the sum is 56.

The square root of 49879865 is about 7062.5678757800. The cubic root of 49879865 is about 368.1078591566.

The spelling of 49879865 in words is "forty-nine million, eight hundred seventy-nine thousand, eight hundred sixty-five".