89986537 has 2 divisors, whose sum is σ = 89986538. Its totient is φ = 89986536.

The previous prime is 89986517. The next prime is 89986541. The reversal of 89986537 is 73568998.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50183056 + 39803481 = 7084^2 + 6309^2 .

It is a cyclic number.

It is not a de Polignac number, because 89986537 - 2¹⁵ = 89953769 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89986517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44993268 + 44993269.

It is an arithmetic number, because the mean of its divisors is an integer number (44993269).

Almost surely, 2^89986537 is an apocalyptic number.

It is an amenable number.

89986537 is a deficient number, since it is larger than the sum of its proper divisors (1).

89986537 is an equidigital number, since it uses as much as digits as its factorization.

89986537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 55.

The square root of 89986537 is about 9486.1233915652. The cubic root of 89986537 is about 448.1181279295.

The spelling of 89986537 in words is "eighty-nine million, nine hundred eighty-six thousand, five hundred thirty-seven".