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90247 is a prime number
BaseRepresentation
bin10110000010000111
311120210111
4112002013
510341442
61533451
7524053
oct260207
9146714
1090247
1161893
1244287
1332101
1424c63
151bb17
hex16087

90247 has 2 divisors, whose sum is σ = 90248. Its totient is φ = 90246.

The previous prime is 90239. The next prime is 90263. The reversal of 90247 is 74209.

90247 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is an emirp because it is prime and its reverse (74209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90247 - 23 = 90239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45123 + 45124.

It is an arithmetic number, because the mean of its divisors is an integer number (45124).

290247 is an apocalyptic number.

90247 is a deficient number, since it is larger than the sum of its proper divisors (1).

90247 is an equidigital number, since it uses as much as digits as its factorization.

90247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 90247 is about 300.4113846045. The cubic root of 90247 is about 44.8550065729.

It can be divided in two parts, 902 and 47, that added together give a palindrome (949).

The spelling of 90247 in words is "ninety thousand, two hundred forty-seven".