6690276937 has 4 divisors (see below), whose sum is σ = 6691658116. Its totient is φ = 6688895760.

The previous prime is 6690276851. The next prime is 6690276947. The reversal of 6690276937 is 7396720966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7396720966 = 2 ⋅3698360483.

It can be written as a sum of positive squares in 2 ways, for example, as 5862046096 + 828230841 = 76564^2 + 28779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6690276937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6690276947) 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, 683298 + ... + 693019.

It is an arithmetic number, because the mean of its divisors is an integer number (1672914529).

Almost surely, 2^6690276937 is an apocalyptic number.

It is an amenable number.

6690276937 is a deficient number, since it is larger than the sum of its proper divisors (1381179).

6690276937 is a wasteful number, since it uses less digits than its factorization.

6690276937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381178.

The product of its (nonzero) digits is 5143824, while the sum is 55.

The square root of 6690276937 is about 81794.1130950144. The cubic root of 6690276937 is about 1884.2912515355.

The spelling of 6690276937 in words is "six billion, six hundred ninety million, two hundred seventy-six thousand, nine hundred thirty-seven".