90459601 has 6 divisors (see below), whose sum is σ = 96094070. Its totient is φ = 85138176.

The previous prime is 90459599. The next prime is 90459617. The reversal of 90459601 is 10695409.

It can be written as a sum of positive squares in 3 ways, for example, as 41473600 + 48986001 = 6440^2 + 6999^2 .

It is not a de Polignac number, because 90459601 - 2¹ = 90459599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90459001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156216 + ... + 156793.

Almost surely, 2^90459601 is an apocalyptic number.

It is an amenable number.

90459601 is a deficient number, since it is larger than the sum of its proper divisors (5634469).

90459601 is a wasteful number, since it uses less digits than its factorization.

90459601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313043 (or 313026 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 90459601 is about 9511.0252339062. The cubic root of 90459601 is about 448.9020161418.

The spelling of 90459601 in words is "ninety million, four hundred fifty-nine thousand, six hundred one".