87801513 has 8 divisors (see below), whose sum is σ = 117273888. Its totient is φ = 58431744.

The previous prime is 87801503. The next prime is 87801523. The reversal of 87801513 is 31510878.

It is an interprime number because it is at equal distance from previous prime (87801503) and next prime (87801523).

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

It is not a de Polignac number, because 87801513 - 2¹⁴ = 87785129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87801503) 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 7 ways as a sum of consecutive naturals, for example, 23631 + ... + 27092.

It is an arithmetic number, because the mean of its divisors is an integer number (14659236).

Almost surely, 2^87801513 is an apocalyptic number.

It is an amenable number.

87801513 is a deficient number, since it is larger than the sum of its proper divisors (29472375).

87801513 is a wasteful number, since it uses less digits than its factorization.

87801513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51303.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 87801513 is about 9370.2461547176. The cubic root of 87801513 is about 444.4613488408.

The spelling of 87801513 in words is "eighty-seven million, eight hundred one thousand, five hundred thirteen".