4978086 has 16 divisors (see below), whose sum is σ = 9979200. Its totient is φ = 1655528.

The previous prime is 4978081. The next prime is 4978109. The reversal of 4978086 is 6808794.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978081) 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, 3325 + ... + 4583.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 2^4978086 is an apocalyptic number.

4978086 is an abundant number, since it is smaller than the sum of its proper divisors (5001114).

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

4978086 is a wasteful number, since it uses less digits than its factorization.

4978086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 4978086 is about 2231.1624772750. The cubic root of 4978086 is about 170.7474127258.

The spelling of 4978086 in words is "four million, nine hundred seventy-eight thousand, eighty-six".