89671663 has 4 divisors (see below), whose sum is σ = 89988808. Its totient is φ = 89354520.

The previous prime is 89671657. The next prime is 89671693. The reversal of 89671663 is 36617698.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89671663 - 2²¹ = 87574511 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 (89671613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158148 + ... + 158713.

It is an arithmetic number, because the mean of its divisors is an integer number (22497202).

Almost surely, 2^89671663 is an apocalyptic number.

89671663 is a deficient number, since it is larger than the sum of its proper divisors (317145).

89671663 is a wasteful number, since it uses less digits than its factorization.

89671663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317144.

The product of its digits is 326592, while the sum is 46.

The square root of 89671663 is about 9469.5122894476. The cubic root of 89671663 is about 447.5948435616.

The spelling of 89671663 in words is "eighty-nine million, six hundred seventy-one thousand, six hundred sixty-three".