87489063 has 12 divisors (see below), whose sum is σ = 126638928. Its totient is φ = 58203360.

The previous prime is 87489049. The next prime is 87489071. The reversal of 87489063 is 36098478.

It is a happy number.

It is not a de Polignac number, because 87489063 - 2⁹ = 87488551 is a prime.

It is a super-2 number, since 2×87489063² = 15308672289235938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87489013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5598 + ... + 14363.

It is an arithmetic number, because the mean of its divisors is an integer number (10553244).

Almost surely, 2^87489063 is an apocalyptic number.

87489063 is a deficient number, since it is larger than the sum of its proper divisors (39149865).

87489063 is a wasteful number, since it uses less digits than its factorization.

87489063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20454 (or 20451 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 87489063 is about 9353.5588414250. The cubic root of 87489063 is about 443.9335029462.

The spelling of 87489063 in words is "eighty-seven million, four hundred eighty-nine thousand, sixty-three".