4536978 has 16 divisors (see below), whose sum is σ = 9295776. Its totient is φ = 1475360.

The previous prime is 4536967. The next prime is 4536989. The reversal of 4536978 is 8796354.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4536967) and next prime (4536989).

It is a d-powerful number, because it can be written as 4¹¹ + 5⁵ + 3 + 6⁷ + 9⁵ + 7² + 8³ .

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, 8976 + ... + 9467.

It is an arithmetic number, because the mean of its divisors is an integer number (580986).

Almost surely, 2^4536978 is an apocalyptic number.

4536978 is an abundant number, since it is smaller than the sum of its proper divisors (4758798).

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

4536978 is a wasteful number, since it uses less digits than its factorization.

4536978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18489.

The product of its digits is 181440, while the sum is 42.

The square root of 4536978 is about 2130.0183097805. The cubic root of 4536978 is about 165.5473466761.

The spelling of 4536978 in words is "four million, five hundred thirty-six thousand, nine hundred seventy-eight".