49870621 has 8 divisors (see below), whose sum is σ = 50389560. Its totient is φ = 49354752.

The previous prime is 49870609. The next prime is 49870627. The reversal of 49870621 is 12607894.

It can be written as a sum of positive squares in 4 ways, for example, as 2604996 + 47265625 = 1614^2 + 6875^2 .

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 49870621 - 2¹³ = 49862429 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 (49870627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44415 + ... + 45523.

It is an arithmetic number, because the mean of its divisors is an integer number (6298695).

Almost surely, 2^49870621 is an apocalyptic number.

It is an amenable number.

49870621 is a deficient number, since it is larger than the sum of its proper divisors (518939).

49870621 is a wasteful number, since it uses less digits than its factorization.

49870621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 49870621 is about 7061.9134092681. The cubic root of 49870621 is about 368.0851178542.

The spelling of 49870621 in words is "forty-nine million, eight hundred seventy thousand, six hundred twenty-one".