4978686 has 16 divisors (see below), whose sum is σ = 10026000. Its totient is φ = 1648128.

The previous prime is 4978681. The next prime is 4978697. The reversal of 4978686 is 6868794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1891 + ... + 3678.

It is an arithmetic number, because the mean of its divisors is an integer number (626625).

Almost surely, 2^4978686 is an apocalyptic number.

4978686 is an abundant number, since it is smaller than the sum of its proper divisors (5047314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4978686 is a wasteful number, since it uses less digits than its factorization.

4978686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723.

The product of its digits is 580608, while the sum is 48.

The square root of 4978686 is about 2231.2969322795. The cubic root of 4978686 is about 170.7542724126.

The spelling of 4978686 in words is "four million, nine hundred seventy-eight thousand, six hundred eighty-six".