87705007 has 16 divisors (see below), whose sum is σ = 101069920. Its totient is φ = 75427200.

The previous prime is 87704971. The next prime is 87705017. The reversal of 87705007 is 70050778.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 87705007 - 2⁷ = 87704879 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 (87705017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12157 + ... + 17977.

It is an arithmetic number, because the mean of its divisors is an integer number (6316870).

Almost surely, 2^87705007 is an apocalyptic number.

87705007 is a deficient number, since it is larger than the sum of its proper divisors (13364913).

87705007 is a wasteful number, since it uses less digits than its factorization.

87705007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5914.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 87705007 is about 9365.0951410010. The cubic root of 87705007 is about 444.2984476552.

The spelling of 87705007 in words is "eighty-seven million, seven hundred five thousand, seven".