48586781 has 4 divisors (see below), whose sum is σ = 51144000. Its totient is φ = 46029564.

The previous prime is 48586729. The next prime is 48586793. The reversal of 48586781 is 18768584.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48586781 - 2⁶ = 48586717 is a prime.

It is a super-2 number, since 2×48586781² = 4721350575883922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48586711) 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, 1278581 + ... + 1278618.

It is an arithmetic number, because the mean of its divisors is an integer number (12786000).

Almost surely, 2^48586781 is an apocalyptic number.

It is an amenable number.

48586781 is a deficient number, since it is larger than the sum of its proper divisors (2557219).

48586781 is a wasteful number, since it uses less digits than its factorization.

48586781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557218.

The product of its digits is 430080, while the sum is 47.

The square root of 48586781 is about 6970.4218667165. The cubic root of 48586781 is about 364.8990300559.

The spelling of 48586781 in words is "forty-eight million, five hundred eighty-six thousand, seven hundred eighty-one".