4977947 has 4 divisors (see below), whose sum is σ = 5360880. Its totient is φ = 4595016.

The previous prime is 4977901. The next prime is 4977953. The reversal of 4977947 is 7497794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7497794 = 2 ⋅3748897.

It is a cyclic number.

It is not a de Polignac number, because 4977947 - 2⁸ = 4977691 is a prime.

It is a d-powerful number, because it can be written as 4² + 9² + 7⁵ + 7⁶ + 9⁶ + 4¹¹ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4977977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191447 + ... + 191472.

It is an arithmetic number, because the mean of its divisors is an integer number (1340220).

Almost surely, 2^4977947 is an apocalyptic number.

4977947 is a deficient number, since it is larger than the sum of its proper divisors (382933).

4977947 is a wasteful number, since it uses less digits than its factorization.

4977947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382932.

The product of its digits is 444528, while the sum is 47.

The square root of 4977947 is about 2231.1313273763. The cubic root of 4977947 is about 170.7458234864.

The spelling of 4977947 in words is "four million, nine hundred seventy-seven thousand, nine hundred forty-seven".