49782421 has 8 divisors (see below), whose sum is σ = 53910584. Its totient is φ = 45696960.

The previous prime is 49782401. The next prime is 49782461. The reversal of 49782421 is 12428794.

It can be written as a sum of positive squares in 4 ways, for example, as 9523396 + 40259025 = 3086^2 + 6345^2 .

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 49782421 - 2⁵ = 49782389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49782401) 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, 8226 + ... + 12931.

It is an arithmetic number, because the mean of its divisors is an integer number (6738823).

Almost surely, 2^49782421 is an apocalyptic number.

It is an amenable number.

49782421 is a deficient number, since it is larger than the sum of its proper divisors (4128163).

49782421 is a wasteful number, since it uses less digits than its factorization.

49782421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21351.

The product of its digits is 32256, while the sum is 37.

The square root of 49782421 is about 7055.6658792774. The cubic root of 49782421 is about 367.8679942613.

The spelling of 49782421 in words is "forty-nine million, seven hundred eighty-two thousand, four hundred twenty-one".