90003239 has 2 divisors, whose sum is σ = 90003240. Its totient is φ = 90003238.

The previous prime is 90003227. The next prime is 90003259. The reversal of 90003239 is 93230009.

It is a weak prime.

It is an emirp because it is prime and its reverse (93230009) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90003239 is a prime.

It is a super-2 number, since 2×90003239² = 16201166060982242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90003259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45001619 + 45001620.

It is an arithmetic number, because the mean of its divisors is an integer number (45001620).

Almost surely, 2^90003239 is an apocalyptic number.

90003239 is a deficient number, since it is larger than the sum of its proper divisors (1).

90003239 is an equidigital number, since it uses as much as digits as its factorization.

90003239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 90003239 is about 9487.0036892583. The cubic root of 90003239 is about 448.1458506171.

The spelling of 90003239 in words is "ninety million, three thousand, two hundred thirty-nine".