6690487017 has 4 divisors (see below), whose sum is σ = 8920649360. Its totient is φ = 4460324676.

The previous prime is 6690486983. The next prime is 6690487033. The reversal of 6690487017 is 7107840966.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6690487017 - 2¹² = 6690482921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6690487057) 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, 1115081167 + ... + 1115081172.

It is an arithmetic number, because the mean of its divisors is an integer number (2230162340).

Almost surely, 2^6690487017 is an apocalyptic number.

It is an amenable number.

6690487017 is a deficient number, since it is larger than the sum of its proper divisors (2230162343).

6690487017 is a wasteful number, since it uses less digits than its factorization.

6690487017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230162342.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 6690487017 is about 81795.3972849328. The cubic root of 6690487017 is about 1884.3109740755.

The spelling of 6690487017 in words is "six billion, six hundred ninety million, four hundred eighty-seven thousand, seventeen".