49671621 has 12 divisors (see below), whose sum is σ = 73275072. Its totient is φ = 32409576.

The previous prime is 49671617. The next prime is 49671631. The reversal of 49671621 is 12617694.

49671621 is a `hidden beast` number, since 496 + 7 + 162 + 1 = 666.

It is not a de Polignac number, because 49671621 - 2² = 49671617 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49671631) 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 11 ways as a sum of consecutive naturals, for example, 58291 + ... + 59136.

It is an arithmetic number, because the mean of its divisors is an integer number (6106256).

Almost surely, 2^49671621 is an apocalyptic number.

It is an amenable number.

49671621 is a deficient number, since it is larger than the sum of its proper divisors (23603451).

49671621 is a wasteful number, since it uses less digits than its factorization.

49671621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117480 (or 117477 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 49671621 is about 7047.8096597454. The cubic root of 49671621 is about 367.5948720770.

The spelling of 49671621 in words is "forty-nine million, six hundred seventy-one thousand, six hundred twenty-one".