48789721 has 2 divisors, whose sum is σ = 48789722. Its totient is φ = 48789720.

The previous prime is 48789703. The next prime is 48789737. The reversal of 48789721 is 12798784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48149721 + 640000 = 6939^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 48789721 - 2¹³ = 48781529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (48789751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24394860 + 24394861.

It is an arithmetic number, because the mean of its divisors is an integer number (24394861).

Almost surely, 2^48789721 is an apocalyptic number.

It is an amenable number.

48789721 is a deficient number, since it is larger than the sum of its proper divisors (1).

48789721 is an equidigital number, since it uses as much as digits as its factorization.

48789721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 46.

The square root of 48789721 is about 6984.9639225983. The cubic root of 48789721 is about 365.4063679494.

The spelling of 48789721 in words is "forty-eight million, seven hundred eighty-nine thousand, seven hundred twenty-one".