4857778 has 4 divisors (see below), whose sum is σ = 7286670. Its totient is φ = 2428888.

The previous prime is 4857751. The next prime is 4857781. The reversal of 4857778 is 8777584.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4173849 + 683929 = 2043^2 + 827^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214443 + ... + 1214446.

Almost surely, 2^4857778 is an apocalyptic number.

4857778 is a deficient number, since it is larger than the sum of its proper divisors (2428892).

4857778 is a wasteful number, since it uses less digits than its factorization.

4857778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428891.

The product of its digits is 439040, while the sum is 46.

The square root of 4857778 is about 2204.0367510548. The cubic root of 4857778 is about 169.3606666701.

The spelling of 4857778 in words is "four million, eight hundred fifty-seven thousand, seven hundred seventy-eight".