2076684521 has 4 divisors (see below), whose sum is σ = 2198842452. Its totient is φ = 1954526592.

The previous prime is 2076684499. The next prime is 2076684523. The reversal of 2076684521 is 1254866702.

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 1322413225 + 754271296 = 36365^2 + 27464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2076684521 - 2⁶ = 2076684457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2076684523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61078940 + ... + 61078973.

It is an arithmetic number, because the mean of its divisors is an integer number (549710613).

Almost surely, 2^2076684521 is an apocalyptic number.

It is an amenable number.

2076684521 is a deficient number, since it is larger than the sum of its proper divisors (122157931).

2076684521 is a wasteful number, since it uses less digits than its factorization.

2076684521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122157930.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 2076684521 is about 45570.6541647144. The cubic root of 2076684521 is about 1275.8222600164.

The spelling of 2076684521 in words is "two billion, seventy-six million, six hundred eighty-four thousand, five hundred twenty-one".