49316621 has 4 divisors (see below), whose sum is σ = 49777632. Its totient is φ = 48855612.

The previous prime is 49316599. The next prime is 49316639. The reversal of 49316621 is 12661394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12661394 = 2 ⋅6330697.

It is a cyclic number.

It is not a de Polignac number, because 49316621 - 2¹⁰ = 49315597 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 (49316651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230345 + ... + 230558.

It is an arithmetic number, because the mean of its divisors is an integer number (12444408).

Almost surely, 2^49316621 is an apocalyptic number.

It is an amenable number.

49316621 is a deficient number, since it is larger than the sum of its proper divisors (461011).

49316621 is a wasteful number, since it uses less digits than its factorization.

49316621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461010.

The product of its digits is 7776, while the sum is 32.

The square root of 49316621 is about 7022.5793694340. The cubic root of 49316621 is about 366.7170515702.

The spelling of 49316621 in words is "forty-nine million, three hundred sixteen thousand, six hundred twenty-one".