49636921 has 16 divisors (see below), whose sum is σ = 54743040. Its totient is φ = 44850960.

The previous prime is 49636919. The next prime is 49636931. The reversal of 49636921 is 12963694.

It is a cyclic number.

It is not a de Polignac number, because 49636921 - 2¹ = 49636919 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49636931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29850 + ... + 31468.

It is an arithmetic number, because the mean of its divisors is an integer number (3421440).

Almost surely, 2^49636921 is an apocalyptic number.

It is an amenable number.

49636921 is a deficient number, since it is larger than the sum of its proper divisors (5106119).

49636921 is a wasteful number, since it uses less digits than its factorization.

49636921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716.

The product of its digits is 69984, while the sum is 40.

The square root of 49636921 is about 7045.3474719136. The cubic root of 49636921 is about 367.5092530103.

The spelling of 49636921 in words is "forty-nine million, six hundred thirty-six thousand, nine hundred twenty-one".