48720791 has 4 divisors (see below), whose sum is σ = 55680912. Its totient is φ = 41760672.

The previous prime is 48720781. The next prime is 48720797. The reversal of 48720791 is 19702784.

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

It is a cyclic number.

It is not a de Polignac number, because 48720791 - 2²² = 44526487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48720797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3480050 + ... + 3480063.

It is an arithmetic number, because the mean of its divisors is an integer number (13920228).

Almost surely, 2^48720791 is an apocalyptic number.

48720791 is a deficient number, since it is larger than the sum of its proper divisors (6960121).

48720791 is an equidigital number, since it uses as much as digits as its factorization.

48720791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6960120.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 48720791 is about 6980.0280085398. The cubic root of 48720791 is about 365.2342051021.

The spelling of 48720791 in words is "forty-eight million, seven hundred twenty thousand, seven hundred ninety-one".