48742821 has 12 divisors (see below), whose sum is σ = 70532748. Its totient is φ = 32436864.

The previous prime is 48742787. The next prime is 48742853. The reversal of 48742821 is 12824784.

It can be written as a sum of positive squares in 2 ways, for example, as 34680321 + 14062500 = 5889^2 + 3750^2 .

It is not a de Polignac number, because 48742821 - 2¹⁷ = 48611749 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (48742021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771 + ... + 9903.

It is an arithmetic number, because the mean of its divisors is an integer number (5877729).

Almost surely, 2^48742821 is an apocalyptic number.

It is an amenable number.

48742821 is a deficient number, since it is larger than the sum of its proper divisors (21789927).

48742821 is a wasteful number, since it uses less digits than its factorization.

48742821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9732 (or 9729 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 48742821 is about 6981.6059040883. The cubic root of 48742821 is about 365.2892459238.

The spelling of 48742821 in words is "forty-eight million, seven hundred forty-two thousand, eight hundred twenty-one".