4748781 has 4 divisors (see below), whose sum is σ = 6331712. Its totient is φ = 3165852.

The previous prime is 4748771. The next prime is 4748813. The reversal of 4748781 is 1878474.

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 not a de Polignac number, because 4748781 - 2⁵ = 4748749 is a prime.

It is a super-2 number, since 2×4748781² = 45101841971922, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4748771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791461 + ... + 791466.

It is an arithmetic number, because the mean of its divisors is an integer number (1582928).

Almost surely, 2^4748781 is an apocalyptic number.

It is an amenable number.

4748781 is a deficient number, since it is larger than the sum of its proper divisors (1582931).

4748781 is a wasteful number, since it uses less digits than its factorization.

4748781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582930.

The product of its digits is 50176, while the sum is 39.

The square root of 4748781 is about 2179.1697960462. The cubic root of 4748781 is about 168.0843892921.

It can be divided in two parts, 47 and 48781, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 4748781 in words is "four million, seven hundred forty-eight thousand, seven hundred eighty-one".