89671505 has 32 divisors (see below), whose sum is σ = 135717120. Its totient is φ = 55249920.

The previous prime is 89671493. The next prime is 89671511. The reversal of 89671505 is 50517698.

It is not a de Polignac number, because 89671505 - 2¹⁴ = 89655121 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32957 + ... + 35573.

It is an arithmetic number, because the mean of its divisors is an integer number (4241160).

Almost surely, 2^89671505 is an apocalyptic number.

It is an amenable number.

89671505 is a deficient number, since it is larger than the sum of its proper divisors (46045615).

89671505 is a wasteful number, since it uses less digits than its factorization.

89671505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 89671505 is about 9469.5039468813. The cubic root of 89671505 is about 447.5945806765.

The spelling of 89671505 in words is "eighty-nine million, six hundred seventy-one thousand, five hundred five".