49842821 has 8 divisors (see below), whose sum is σ = 57007104. Its totient is φ = 42689520.

The previous prime is 49842803. The next prime is 49842869. The reversal of 49842821 is 12824894.

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 49842821 - 2¹⁰ = 49841797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49841821) 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, 13091 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (7125888).

Almost surely, 2^49842821 is an apocalyptic number.

It is an amenable number.

49842821 is a deficient number, since it is larger than the sum of its proper divisors (7164283).

49842821 is a wasteful number, since it uses less digits than its factorization.

49842821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its digits is 36864, while the sum is 38.

The square root of 49842821 is about 7059.9448298128. The cubic root of 49842821 is about 368.0167097209.

The spelling of 49842821 in words is "forty-nine million, eight hundred forty-two thousand, eight hundred twenty-one".