4878997 has 6 divisors (see below), whose sum is σ = 5042454. Its totient is φ = 4720680.

The previous prime is 4878977. The next prime is 4879009. The reversal of 4878997 is 7998784.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4844401 + 34596 = 2201^2 + 186^2 .

It is not a de Polignac number, because 4878997 - 2⁷ = 4878869 is a prime.

It is a super-2 number, since 2×4878997² = 47609223452018, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4878977) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1578 + ... + 3499.

It is an arithmetic number, because the mean of its divisors is an integer number (840409).

Almost surely, 2^4878997 is an apocalyptic number.

It is an amenable number.

4878997 is a deficient number, since it is larger than the sum of its proper divisors (163457).

4878997 is an equidigital number, since it uses as much as digits as its factorization.

4878997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139 (or 5108 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The square root of 4878997 is about 2208.8451733881. The cubic root of 4878997 is about 169.6069002510.

The spelling of 4878997 in words is "four million, eight hundred seventy-eight thousand, nine hundred ninety-seven".