89986481 has 4 divisors (see below), whose sum is σ = 96908532. Its totient is φ = 83064432.

The previous prime is 89986471. The next prime is 89986517. The reversal of 89986481 is 18468998.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5640625 + 84345856 = 2375^2 + 9184^2 .

It is a cyclic number.

It is not a de Polignac number, because 89986481 - 2⁶ = 89986417 is a prime.

It is a super-2 number, since 2×89986481² = 16195133525526722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89986411) 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, 3461006 + ... + 3461031.

It is an arithmetic number, because the mean of its divisors is an integer number (24227133).

Almost surely, 2^89986481 is an apocalyptic number.

It is an amenable number.

89986481 is a deficient number, since it is larger than the sum of its proper divisors (6922051).

89986481 is a wasteful number, since it uses less digits than its factorization.

89986481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6922050.

The product of its digits is 995328, while the sum is 53.

The square root of 89986481 is about 9486.1204398848. The cubic root of 89986481 is about 448.1180349726.

The spelling of 89986481 in words is "eighty-nine million, nine hundred eighty-six thousand, four hundred eighty-one".