89561413 has 2 divisors, whose sum is σ = 89561414. Its totient is φ = 89561412.

The previous prime is 89561411. The next prime is 89561429. The reversal of 89561413 is 31416598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87928129 + 1633284 = 9377^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 89561413 - 2¹ = 89561411 is a prime.

Together with 89561411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89561411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44780706 + 44780707.

It is an arithmetic number, because the mean of its divisors is an integer number (44780707).

Almost surely, 2^89561413 is an apocalyptic number.

It is an amenable number.

89561413 is a deficient number, since it is larger than the sum of its proper divisors (1).

89561413 is an equidigital number, since it uses as much as digits as its factorization.

89561413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 89561413 is about 9463.6891855132. The cubic root of 89561413 is about 447.4113312248.

The spelling of 89561413 in words is "eighty-nine million, five hundred sixty-one thousand, four hundred thirteen".