4977778 has 8 divisors (see below), whose sum is σ = 8041068. Its totient is φ = 2297424.

The previous prime is 4977767. The next prime is 4977781. The reversal of 4977778 is 8777794.

It can be written as a sum of positive squares in 2 ways, for example, as 4870849 + 106929 = 2207^2 + 327^2 .

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

It is an unprimeable number.

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, 95701 + ... + 95752.

Almost surely, 2^4977778 is an apocalyptic number.

4977778 is a deficient number, since it is larger than the sum of its proper divisors (3063290).

4977778 is a wasteful number, since it uses less digits than its factorization.

4977778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191468.

The product of its digits is 691488, while the sum is 49.

The square root of 4977778 is about 2231.0934538921. The cubic root of 4977778 is about 170.7438912058.

The spelling of 4977778 in words is "four million, nine hundred seventy-seven thousand, seven hundred seventy-eight".