87380559 has 16 divisors (see below), whose sum is σ = 147946240. Its totient is φ = 49931640.

The previous prime is 87380533. The next prime is 87380597. The reversal of 87380559 is 95508378.

87380559 = T₂₄₇ + T₂₄₈ + ... + T₈₁₃.

It is not a de Polignac number, because 87380559 - 2⁷ = 87380431 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 (87380659) 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, 230977 + ... + 231354.

It is an arithmetic number, because the mean of its divisors is an integer number (9246640).

Almost surely, 2^87380559 is an apocalyptic number.

87380559 is a deficient number, since it is larger than the sum of its proper divisors (60565681).

87380559 is a wasteful number, since it uses less digits than its factorization.

87380559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462347 (or 462341 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 87380559 is about 9347.7568967106. The cubic root of 87380559 is about 443.7499048072.

The spelling of 87380559 in words is "eighty-seven million, three hundred eighty thousand, five hundred fifty-nine".