4778906 has 8 divisors (see below), whose sum is σ = 7820064. Its totient is φ = 2172220.

The previous prime is 4778869. The next prime is 4778927. The reversal of 4778906 is 6098774.

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

It is a congruent number.

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, 108590 + ... + 108633.

It is an arithmetic number, because the mean of its divisors is an integer number (977508).

Almost surely, 2^4778906 is an apocalyptic number.

4778906 is a deficient number, since it is larger than the sum of its proper divisors (3041158).

4778906 is a wasteful number, since it uses less digits than its factorization.

4778906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217236.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 4778906 is about 2186.0709046140. The cubic root of 4778906 is about 168.4390678612.

The spelling of 4778906 in words is "four million, seven hundred seventy-eight thousand, nine hundred six".