2087391679 has 8 divisors (see below), whose sum is σ = 2096869392. Its totient is φ = 2077932480.

The previous prime is 2087391643. The next prime is 2087391701. The reversal of 2087391679 is 9761937802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2087391679 - 2¹¹ = 2087389631 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 (2087391619) 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 7 ways as a sum of consecutive naturals, for example, 252912 + ... + 261034.

It is an arithmetic number, because the mean of its divisors is an integer number (262108674).

Almost surely, 2^2087391679 is an apocalyptic number.

2087391679 is a deficient number, since it is larger than the sum of its proper divisors (9477713).

2087391679 is an equidigital number, since it uses as much as digits as its factorization.

2087391679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9257.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 2087391679 is about 45687.9817785816. The cubic root of 2087391679 is about 1278.0111690153.

The spelling of 2087391679 in words is "two billion, eighty-seven million, three hundred ninety-one thousand, six hundred seventy-nine".