48721784 has 8 divisors (see below), whose sum is σ = 91353360. Its totient is φ = 24360888.

The previous prime is 48721759. The next prime is 48721789. The reversal of 48721784 is 48712784.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×48721784² = 4747624472285312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48721789) 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 as a sum of consecutive naturals, namely, 3045104 + ... + 3045119.

It is an arithmetic number, because the mean of its divisors is an integer number (11419170).

Almost surely, 2^48721784 is an apocalyptic number.

It is an amenable number.

48721784 is a deficient number, since it is larger than the sum of its proper divisors (42631576).

48721784 is a wasteful number, since it uses less digits than its factorization.

48721784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090229 (or 6090225 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 48721784 is about 6980.0991396971. The cubic root of 48721784 is about 365.2366864186.

The spelling of 48721784 in words is "forty-eight million, seven hundred twenty-one thousand, seven hundred eighty-four".