48768721 has 4 divisors (see below), whose sum is σ = 49958244. Its totient is φ = 47579200.

The previous prime is 48768703. The next prime is 48768757. The reversal of 48768721 is 12786784.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21520321 + 27248400 = 4639^2 + 5220^2 .

It is a cyclic number.

It is not a de Polignac number, because 48768721 - 2¹⁷ = 48637649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48763721) 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, 594700 + ... + 594781.

It is an arithmetic number, because the mean of its divisors is an integer number (12489561).

Almost surely, 2^48768721 is an apocalyptic number.

48768721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

48768721 is a deficient number, since it is larger than the sum of its proper divisors (1189523).

48768721 is a wasteful number, since it uses less digits than its factorization.

48768721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189522.

The product of its digits is 150528, while the sum is 43.

The square root of 48768721 is about 6983.4605318567. The cubic root of 48768721 is about 365.3539345353.

The spelling of 48768721 in words is "forty-eight million, seven hundred sixty-eight thousand, seven hundred twenty-one".