87458489 has 8 divisors (see below), whose sum is σ = 96629760. Its totient is φ = 78734656.

The previous prime is 87458479. The next prime is 87458521. The reversal of 87458489 is 98485478.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87458489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87458489.

It is not an unprimeable number, because it can be changed into a prime (87458479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111449 + ... + 112230.

It is an arithmetic number, because the mean of its divisors is an integer number (12078720).

Almost surely, 2^87458489 is an apocalyptic number.

It is an amenable number.

87458489 is a deficient number, since it is larger than the sum of its proper divisors (9171271).

87458489 is a wasteful number, since it uses less digits than its factorization.

87458489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223719.

The product of its digits is 2580480, while the sum is 53.

The square root of 87458489 is about 9351.9243474271. The cubic root of 87458489 is about 443.8817844653.

The spelling of 87458489 in words is "eighty-seven million, four hundred fifty-eight thousand, four hundred eighty-nine".