89487761 has 16 divisors (see below), whose sum is σ = 99792000. Its totient is φ = 79564800.

The previous prime is 89487721. The next prime is 89487781. The reversal of 89487761 is 16778498.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89487761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89487721) 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, 115985 + ... + 116753.

It is an arithmetic number, because the mean of its divisors is an integer number (6237000).

Almost surely, 2^89487761 is an apocalyptic number.

It is an amenable number.

89487761 is a deficient number, since it is larger than the sum of its proper divisors (10304239).

89487761 is a wasteful number, since it uses less digits than its factorization.

89487761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000.

The product of its digits is 677376, while the sum is 50.

The square root of 89487761 is about 9459.7970908471. The cubic root of 89487761 is about 447.2886527355.

The spelling of 89487761 in words is "eighty-nine million, four hundred eighty-seven thousand, seven hundred sixty-one".