4951778 has 16 divisors (see below), whose sum is σ = 8043840. Its totient is φ = 2272656.

The previous prime is 4951757. The next prime is 4951783. The reversal of 4951778 is 8771594.

It is a super-2 number, since 2×4951778² = 49040210722568, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5483 + ... + 6321.

It is an arithmetic number, because the mean of its divisors is an integer number (502740).

Almost surely, 2^4951778 is an apocalyptic number.

4951778 is a deficient number, since it is larger than the sum of its proper divisors (3092062).

4951778 is a wasteful number, since it uses less digits than its factorization.

4951778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081.

The product of its digits is 70560, while the sum is 41.

The square root of 4951778 is about 2225.2590860392. The cubic root of 4951778 is about 170.4460948204.

The spelling of 4951778 in words is "four million, nine hundred fifty-one thousand, seven hundred seventy-eight".