87488493 has 4 divisors (see below), whose sum is σ = 116651328. Its totient is φ = 58325660.

The previous prime is 87488491. The next prime is 87488497. The reversal of 87488493 is 39488478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87488493 - 2¹ = 87488491 is a prime.

It is a super-2 number, since 2×87488493² = 15308472814822098, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87488491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14581413 + ... + 14581418.

It is an arithmetic number, because the mean of its divisors is an integer number (29162832).

Almost surely, 2^87488493 is an apocalyptic number.

It is an amenable number.

87488493 is a deficient number, since it is larger than the sum of its proper divisors (29162835).

87488493 is a wasteful number, since it uses less digits than its factorization.

87488493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29162834.

The product of its digits is 1548288, while the sum is 51.

The square root of 87488493 is about 9353.5283716895. The cubic root of 87488493 is about 443.9325388537.

The spelling of 87488493 in words is "eighty-seven million, four hundred eighty-eight thousand, four hundred ninety-three".