4722778 has 16 divisors (see below), whose sum is σ = 7292160. Its totient is φ = 2293200.

The previous prime is 4722769. The next prime is 4722799. The reversal of 4722778 is 8772274.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11008 + ... + 11428.

It is an arithmetic number, because the mean of its divisors is an integer number (455760).

Almost surely, 2^4722778 is an apocalyptic number.

4722778 is a deficient number, since it is larger than the sum of its proper divisors (2569382).

4722778 is a wasteful number, since it uses less digits than its factorization.

4722778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its digits is 43904, while the sum is 37.

The square root of 4722778 is about 2173.1953432676. The cubic root of 4722778 is about 167.7770332002. Note that the first 3 decimals are identical.

The spelling of 4722778 in words is "four million, seven hundred twenty-two thousand, seven hundred seventy-eight".