4728778 has 8 divisors (see below), whose sum is σ = 7130880. Its totient is φ = 2351820.

The previous prime is 4728767. The next prime is 4728797. The reversal of 4728778 is 8778274.

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

It is a super-2 number, since 2×4728778² = 44722682746568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5808 + ... + 6571.

It is an arithmetic number, because the mean of its divisors is an integer number (891360).

Almost surely, 2^4728778 is an apocalyptic number.

4728778 is a deficient number, since it is larger than the sum of its proper divisors (2402102).

4728778 is a wasteful number, since it uses less digits than its factorization.

4728778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12572.

The product of its digits is 175616, while the sum is 43.

The square root of 4728778 is about 2174.5753608463. The cubic root of 4728778 is about 167.8480532792.

The spelling of 4728778 in words is "four million, seven hundred twenty-eight thousand, seven hundred seventy-eight".