2087505729 has 16 divisors (see below), whose sum is σ = 3096364800. Its totient is φ = 1389976848.

The previous prime is 2087505703. The next prime is 2087505787. The reversal of 2087505729 is 9275057802.

It is a happy number.

2087505729 is a `hidden beast` number, since 2 + 0 + 8 + 75 + 0 + 572 + 9 = 666.

It is not a de Polignac number, because 2087505729 - 2⁷ = 2087505601 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2087505229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24249 + ... + 69014.

It is an arithmetic number, because the mean of its divisors is an integer number (193522800).

Almost surely, 2^2087505729 is an apocalyptic number.

It is an amenable number.

2087505729 is a deficient number, since it is larger than the sum of its proper divisors (1008859071).

2087505729 is an equidigital number, since it uses as much as digits as its factorization.

2087505729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94101 (or 94095 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 2087505729 is about 45689.2299015862. The cubic root of 2087505729 is about 1278.0344443978.

The spelling of 2087505729 in words is "two billion, eighty-seven million, five hundred five thousand, seven hundred twenty-nine".