49871649 has 8 divisors (see below), whose sum is σ = 66710592. Its totient is φ = 33140240.

The previous prime is 49871617. The next prime is 49871663. The reversal of 49871649 is 94617894.

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 49871649 - 2⁵ = 49871617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49871598 and 49871607.

It is not an unprimeable number, because it can be changed into a prime (49871669) 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, 25794 + ... + 27659.

It is an arithmetic number, because the mean of its divisors is an integer number (8338824).

Almost surely, 2^49871649 is an apocalyptic number.

It is an amenable number.

49871649 is a deficient number, since it is larger than the sum of its proper divisors (16838943).

49871649 is a wasteful number, since it uses less digits than its factorization.

49871649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53767.

The product of its digits is 435456, while the sum is 48.

The square root of 49871649 is about 7061.9861936993. The cubic root of 49871649 is about 368.0876469912.

The spelling of 49871649 in words is "forty-nine million, eight hundred seventy-one thousand, six hundred forty-nine".