4779281 has 4 divisors (see below), whose sum is σ = 5146932. Its totient is φ = 4411632.

The previous prime is 4779277. The next prime is 4779337. The reversal of 4779281 is 1829774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1829774 = 2 ⋅914887.

It can be written as a sum of positive squares in 2 ways, for example, as 2588881 + 2190400 = 1609^2 + 1480^2 .

It is a cyclic number.

It is not a de Polignac number, because 4779281 - 2² = 4779277 is a prime.

It is a super-2 number, since 2×4779281² = 45683053753922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4779221) 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, 183806 + ... + 183831.

It is an arithmetic number, because the mean of its divisors is an integer number (1286733).

Almost surely, 2^4779281 is an apocalyptic number.

It is an amenable number.

4779281 is a deficient number, since it is larger than the sum of its proper divisors (367651).

4779281 is a wasteful number, since it uses less digits than its factorization.

4779281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367650.

The product of its digits is 28224, while the sum is 38.

The square root of 4779281 is about 2186.1566732510. The cubic root of 4779281 is about 168.4434735416.

The spelling of 4779281 in words is "four million, seven hundred seventy-nine thousand, two hundred eighty-one".