48973721 has 8 divisors (see below), whose sum is σ = 51899400. Its totient is φ = 46130560.

The previous prime is 48973709. The next prime is 48973747. The reversal of 48973721 is 12737984.

It can be written as a sum of positive squares in 4 ways, for example, as 3222025 + 45751696 = 1795^2 + 6764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48973721 - 2⁶ = 48973657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48973121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19406 + ... + 21783.

It is an arithmetic number, because the mean of its divisors is an integer number (6487425).

Almost surely, 2^48973721 is an apocalyptic number.

48973721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

48973721 is a deficient number, since it is larger than the sum of its proper divisors (2925679).

48973721 is a wasteful number, since it uses less digits than its factorization.

48973721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41259.

The product of its digits is 84672, while the sum is 41.

The square root of 48973721 is about 6998.1226768327. The cubic root of 48973721 is about 365.8651423691.

It can be divided in two parts, 48973 and 721, that added together give a palindrome (49694).

The spelling of 48973721 in words is "forty-eight million, nine hundred seventy-three thousand, seven hundred twenty-one".