4920778 has 16 divisors (see below), whose sum is σ = 7845480. Its totient is φ = 2310336.

The previous prime is 4920763. The next prime is 4920787. The reversal of 4920778 is 8770294.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4592449 + 328329 = 2143^2 + 573^2 .

It is a super-2 number, since 2×4920778² = 48428112250568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000 + ... + 3292.

Almost surely, 2^4920778 is an apocalyptic number.

4920778 is a deficient number, since it is larger than the sum of its proper divisors (2924702).

4920778 is a wasteful number, since it uses less digits than its factorization.

4920778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 4920778 is about 2218.2826690934. The cubic root of 4920778 is about 170.0896643487.

The spelling of 4920778 in words is "four million, nine hundred twenty thousand, seven hundred seventy-eight".