2086990567 has 4 divisors (see below), whose sum is σ = 2209754736. Its totient is φ = 1964226400.

The previous prime is 2086990489. The next prime is 2086990603. The reversal of 2086990567 is 7650996802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2086990567 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 (2086991567) 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, 61382059 + ... + 61382092.

It is an arithmetic number, because the mean of its divisors is an integer number (552438684).

Almost surely, 2^2086990567 is an apocalyptic number.

2086990567 is a deficient number, since it is larger than the sum of its proper divisors (122764169).

2086990567 is a wasteful number, since it uses less digits than its factorization.

2086990567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122764168.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 2086990567 is about 45683.5918793608. The cubic root of 2086990567 is about 1277.9293031377.

The spelling of 2086990567 in words is "two billion, eighty-six million, nine hundred ninety thousand, five hundred sixty-seven".