89847313 has 2 divisors, whose sum is σ = 89847314. Its totient is φ = 89847312.

The previous prime is 89847311. The next prime is 89847319. The reversal of 89847313 is 31374898.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70425664 + 19421649 = 8392^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 89847313 - 2¹ = 89847311 is a prime.

Together with 89847311, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 89847313.

It is not a weakly prime, because it can be changed into another prime (89847311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44923656 + 44923657.

It is an arithmetic number, because the mean of its divisors is an integer number (44923657).

Almost surely, 2^89847313 is an apocalyptic number.

It is an amenable number.

89847313 is a deficient number, since it is larger than the sum of its proper divisors (1).

89847313 is an equidigital number, since it uses as much as digits as its factorization.

89847313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 89847313 is about 9478.7822530112. The cubic root of 89847313 is about 447.8869044478.

The spelling of 89847313 in words is "eighty-nine million, eight hundred forty-seven thousand, three hundred thirteen".