48724861 has 4 divisors (see below), whose sum is σ = 49644252. Its totient is φ = 47805472.

The previous prime is 48724859. The next prime is 48724867. The reversal of 48724861 is 16842784.

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 38675961 + 10048900 = 6219^2 + 3170^2 .

It is a cyclic number.

It is not a de Polignac number, because 48724861 - 2¹ = 48724859 is a prime.

It is a super-2 number, since 2×48724861² = 4748224158938642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48724867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459616 + ... + 459721.

It is an arithmetic number, because the mean of its divisors is an integer number (12411063).

Almost surely, 2^48724861 is an apocalyptic number.

It is an amenable number.

48724861 is a deficient number, since it is larger than the sum of its proper divisors (919391).

48724861 is an equidigital number, since it uses as much as digits as its factorization.

48724861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919390.

The product of its digits is 86016, while the sum is 40.

The square root of 48724861 is about 6980.3195485594. The cubic root of 48724861 is about 365.2443750370.

The spelling of 48724861 in words is "forty-eight million, seven hundred twenty-four thousand, eight hundred sixty-one".