48719721 has 8 divisors (see below), whose sum is σ = 65590720. Its totient is φ = 32164272.

The previous prime is 48719711. The next prime is 48719729. The reversal of 48719721 is 12791784.

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

It is not a de Polignac number, because 48719721 - 2¹⁰ = 48718697 is a prime.

It is a super-2 number, since 2×48719721² = 4747222428635682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48719721.

It is not an unprimeable number, because it can be changed into a prime (48719729) 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, 78526 + ... + 79143.

It is an arithmetic number, because the mean of its divisors is an integer number (8198840).

Almost surely, 2^48719721 is an apocalyptic number.

It is an amenable number.

48719721 is a deficient number, since it is larger than the sum of its proper divisors (16870999).

48719721 is a wasteful number, since it uses less digits than its factorization.

48719721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157775.

The product of its digits is 28224, while the sum is 39.

The square root of 48719721 is about 6979.9513608621. The cubic root of 48719721 is about 365.2315313397.

The spelling of 48719721 in words is "forty-eight million, seven hundred nineteen thousand, seven hundred twenty-one".