4977918 has 48 divisors (see below), whose sum is σ = 12160512. Its totient is φ = 1458000.

The previous prime is 4977901. The next prime is 4977953. The reversal of 4977918 is 8197794.

It is a super-2 number, since 2×4977918² = 49559335229448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5733 + ... + 6543.

It is an arithmetic number, because the mean of its divisors is an integer number (253344).

Almost surely, 2^4977918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4977918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6080256).

4977918 is an abundant number, since it is smaller than the sum of its proper divisors (7182594).

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

4977918 is a wasteful number, since it uses less digits than its factorization.

4977918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 858 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 4977918 is about 2231.1248284218. The cubic root of 4977918 is about 170.7454919147.

The spelling of 4977918 in words is "four million, nine hundred seventy-seven thousand, nine hundred eighteen".