48724021 has 4 divisors (see below), whose sum is σ = 48857152. Its totient is φ = 48590892.

The previous prime is 48724003. The next prime is 48724061. The reversal of 48724021 is 12042784.

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.

It is a cyclic number.

It is not a de Polignac number, because 48724021 - 2¹¹ = 48721973 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 (48724061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66015 + ... + 66748.

It is an arithmetic number, because the mean of its divisors is an integer number (12214288).

Almost surely, 2^48724021 is an apocalyptic number.

It is an amenable number.

48724021 is a deficient number, since it is larger than the sum of its proper divisors (133131).

48724021 is a wasteful number, since it uses less digits than its factorization.

48724021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133130.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 48724021 is about 6980.2593791348. The cubic root of 48724021 is about 365.2422761288.

The spelling of 48724021 in words is "forty-eight million, seven hundred twenty-four thousand, twenty-one".