4977946 has 4 divisors (see below), whose sum is σ = 7466922. Its totient is φ = 2488972.

The previous prime is 4977901. The next prime is 4977953. The reversal of 4977946 is 6497794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4669921 + 308025 = 2161^2 + 555^2 .

It is a d-powerful number, because it can be written as 4⁴ + 9⁵ + 7³ + 7⁶ + 9⁷ + 4⁷ + 6⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 4977896 and 4977905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244485 + ... + 1244488.

Almost surely, 2^4977946 is an apocalyptic number.

4977946 is a deficient number, since it is larger than the sum of its proper divisors (2488976).

4977946 is a wasteful number, since it uses less digits than its factorization.

4977946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488975.

The product of its digits is 381024, while the sum is 46.

The square root of 4977946 is about 2231.1311032747. The cubic root of 4977946 is about 170.7458120529.

The spelling of 4977946 in words is "four million, nine hundred seventy-seven thousand, nine hundred forty-six".