4397977 has 4 divisors (see below), whose sum is σ = 4409140. Its totient is φ = 4386816.

The previous prime is 4397969. The next prime is 4397983. The reversal of 4397977 is 7797934.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 301401 = 2024^2 + 549^2 .

It is a cyclic number.

It is not a de Polignac number, because 4397977 - 2³ = 4397969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4397957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4968 + ... + 5785.

It is an arithmetic number, because the mean of its divisors is an integer number (1102285).

Almost surely, 2^4397977 is an apocalyptic number.

It is an amenable number.

4397977 is a deficient number, since it is larger than the sum of its proper divisors (11163).

4397977 is a wasteful number, since it uses less digits than its factorization.

4397977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11162.

The product of its digits is 333396, while the sum is 46.

The square root of 4397977 is about 2097.1354271959. The cubic root of 4397977 is about 163.8391368320.

The spelling of 4397977 in words is "four million, three hundred ninety-seven thousand, nine hundred seventy-seven".