90703449 has 32 divisors (see below), whose sum is σ = 144282240. Its totient is φ = 56111616.

The previous prime is 90703441. The next prime is 90703463. The reversal of 90703449 is 94430709.

It is not a de Polignac number, because 90703449 - 2³ = 90703441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90703441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32154 + ... + 34860.

It is an arithmetic number, because the mean of its divisors is an integer number (4508820).

Almost surely, 2^90703449 is an apocalyptic number.

It is an amenable number.

90703449 is a deficient number, since it is larger than the sum of its proper divisors (53578791).

90703449 is a wasteful number, since it uses less digits than its factorization.

90703449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 90703449 is about 9523.8358343684. The cubic root of 90703449 is about 449.3050161023.

The spelling of 90703449 in words is "ninety million, seven hundred three thousand, four hundred forty-nine".