89786513 has 2 divisors, whose sum is σ = 89786514. Its totient is φ = 89786512.

The previous prime is 89786491. The next prime is 89786519. The reversal of 89786513 is 31568798.

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., 89548369 + 238144 = 9463^2 + 488^2 .

It is a cyclic number.

It is not a de Polignac number, because 89786513 - 2¹⁶ = 89720977 is a prime.

It is not a weakly prime, because it can be changed into another prime (89786519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44893256 + 44893257.

It is an arithmetic number, because the mean of its divisors is an integer number (44893257).

Almost surely, 2^89786513 is an apocalyptic number.

It is an amenable number.

89786513 is a deficient number, since it is larger than the sum of its proper divisors (1).

89786513 is an equidigital number, since it uses as much as digits as its factorization.

89786513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 89786513 is about 9475.5745472240. The cubic root of 89786513 is about 447.7858527571.

The spelling of 89786513 in words is "eighty-nine million, seven hundred eighty-six thousand, five hundred thirteen".