90489703 has 2 divisors, whose sum is σ = 90489704. Its totient is φ = 90489702.

The previous prime is 90489697. The next prime is 90489719. The reversal of 90489703 is 30798409.

It is a weak prime.

It is an emirp because it is prime and its reverse (30798409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90489703 - 2²⁵ = 56935271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90489103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45244851 + 45244852.

It is an arithmetic number, because the mean of its divisors is an integer number (45244852).

Almost surely, 2^90489703 is an apocalyptic number.

90489703 is a deficient number, since it is larger than the sum of its proper divisors (1).

90489703 is an equidigital number, since it uses as much as digits as its factorization.

90489703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 90489703 is about 9512.6075815204. The cubic root of 90489703 is about 448.9518039283.

The spelling of 90489703 in words is "ninety million, four hundred eighty-nine thousand, seven hundred three".