5239784677 has 4 divisors (see below), whose sum is σ = 5247712396. Its totient is φ = 5231856960.

The previous prime is 5239784653. The next prime is 5239784689. The reversal of 5239784677 is 7764879325.

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 2332310436 + 2907474241 = 48294^2 + 53921^2 .

It is a cyclic number.

It is not a de Polignac number, because 5239784677 - 2⁷ = 5239784549 is a prime.

It is a super-2 number, since 2×5239784677² = 54910686922647988658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5239784377) 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, 3962868 + ... + 3964189.

It is an arithmetic number, because the mean of its divisors is an integer number (1311928099).

Almost surely, 2^5239784677 is an apocalyptic number.

It is an amenable number.

5239784677 is a deficient number, since it is larger than the sum of its proper divisors (7927719).

5239784677 is an equidigital number, since it uses as much as digits as its factorization.

5239784677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7927718.

The product of its digits is 17781120, while the sum is 58.

The square root of 5239784677 is about 72386.3569811328. The cubic root of 5239784677 is about 1736.8853290927.

The spelling of 5239784677 in words is "five billion, two hundred thirty-nine million, seven hundred eighty-four thousand, six hundred seventy-seven".