48372821 has 4 divisors (see below), whose sum is σ = 55283232. Its totient is φ = 41462412.

The previous prime is 48372809. The next prime is 48372827. The reversal of 48372821 is 12827384.

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 48372821 - 2⁶ = 48372757 is a prime.

It is a super-2 number, since 2×48372821² = 4679859622996082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48372827) 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, 3455195 + ... + 3455208.

It is an arithmetic number, because the mean of its divisors is an integer number (13820808).

Almost surely, 2^48372821 is an apocalyptic number.

It is an amenable number.

48372821 is a deficient number, since it is larger than the sum of its proper divisors (6910411).

48372821 is an equidigital number, since it uses as much as digits as its factorization.

48372821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910410.

The product of its digits is 21504, while the sum is 35.

The square root of 48372821 is about 6955.0572247826. The cubic root of 48372821 is about 364.3626106174.

The spelling of 48372821 in words is "forty-eight million, three hundred seventy-two thousand, eight hundred twenty-one".