4897778 has 8 divisors (see below), whose sum is σ = 7525980. Its totient is φ = 2389120.

The previous prime is 4897777. The next prime is 4897787. The reversal of 4897778 is 8777984.

It can be written as a sum of positive squares in 2 ways, for example, as 4439449 + 458329 = 2107^2 + 677^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4897771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29783 + ... + 29946.

Almost surely, 2^4897778 is an apocalyptic number.

4897778 is a deficient number, since it is larger than the sum of its proper divisors (2628202).

4897778 is a wasteful number, since it uses less digits than its factorization.

4897778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59772.

The product of its digits is 790272, while the sum is 50.

The square root of 4897778 is about 2213.0924065660. The cubic root of 4897778 is about 169.8242474286.

The spelling of 4897778 in words is "four million, eight hundred ninety-seven thousand, seven hundred seventy-eight".