48747721 has 16 divisors (see below), whose sum is σ = 57094848. Its totient is φ = 41126400.

The previous prime is 48747719. The next prime is 48747739. The reversal of 48747721 is 12774784.

It is not a de Polignac number, because 48747721 - 2¹ = 48747719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48747701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11866 + ... + 15436.

It is an arithmetic number, because the mean of its divisors is an integer number (3568428).

Almost surely, 2^48747721 is an apocalyptic number.

It is an amenable number.

48747721 is a deficient number, since it is larger than the sum of its proper divisors (8347127).

48747721 is a wasteful number, since it uses less digits than its factorization.

48747721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672.

The product of its digits is 87808, while the sum is 40.

The square root of 48747721 is about 6981.9568173973. The cubic root of 48747721 is about 365.3014860670.

The spelling of 48747721 in words is "forty-eight million, seven hundred forty-seven thousand, seven hundred twenty-one".