4971618 has 20 divisors (see below), whose sum is σ = 11140470. Its totient is φ = 1657152.

The previous prime is 4971587. The next prime is 4971643. The reversal of 4971618 is 8161794.

4971618 is a `hidden beast` number, since 497 + 161 + 8 = 666.

4971618 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2712609 + 2259009 = 1647^2 + 1503^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15183 + ... + 15506.

Almost surely, 2^4971618 is an apocalyptic number.

4971618 is an abundant number, since it is smaller than the sum of its proper divisors (6168852).

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

4971618 is a wasteful number, since it uses less digits than its factorization.

4971618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30703 (or 30694 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 4971618 is about 2229.7125375259. The cubic root of 4971618 is about 170.6734302807.

The spelling of 4971618 in words is "four million, nine hundred seventy-one thousand, six hundred eighteen".