2104602757 has 4 divisors (see below), whose sum is σ = 2104846380. Its totient is φ = 2104359136.

The previous prime is 2104602749. The next prime is 2104602779. The reversal of 2104602757 is 7572064012.

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 349914436 + 1754688321 = 18706^2 + 41889^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104602757 - 2³ = 2104602749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104602257) 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, 108358 + ... + 126295.

It is an arithmetic number, because the mean of its divisors is an integer number (526211595).

Almost surely, 2^2104602757 is an apocalyptic number.

It is an amenable number.

2104602757 is a deficient number, since it is larger than the sum of its proper divisors (243623).

2104602757 is an equidigital number, since it uses as much as digits as its factorization.

2104602757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243622.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 2104602757 is about 45875.9496577455. The cubic root of 2104602757 is about 1281.5140687454.

Adding to 2104602757 its reverse (7572064012), we get a palindrome (9676666769).

The spelling of 2104602757 in words is "two billion, one hundred four million, six hundred two thousand, seven hundred fifty-seven".