4568978 has 4 divisors (see below), whose sum is σ = 6853470. Its totient is φ = 2284488.

The previous prime is 4568969. The next prime is 4568981. The reversal of 4568978 is 8798654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8798654 = 2 ⋅4399327.

It can be written as a sum of positive squares in only one way, i.e., 4566769 + 2209 = 2137^2 + 47^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1142243 + ... + 1142246.

Almost surely, 2^4568978 is an apocalyptic number.

4568978 is a deficient number, since it is larger than the sum of its proper divisors (2284492).

4568978 is a wasteful number, since it uses less digits than its factorization.

4568978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284491.

The product of its digits is 483840, while the sum is 47.

The square root of 4568978 is about 2137.5167835598. The cubic root of 4568978 is about 165.9356454468.

The spelling of 4568978 in words is "four million, five hundred sixty-eight thousand, nine hundred seventy-eight".