90246591 has 12 divisors (see below), whose sum is σ = 138024432. Its totient is φ = 56625216.

The previous prime is 90246553. The next prime is 90246601. The reversal of 90246591 is 19564209.

It is not a de Polignac number, because 90246591 - 2¹³ = 90238399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90246391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294771 + ... + 295076.

It is an arithmetic number, because the mean of its divisors is an integer number (11502036).

Almost surely, 2^90246591 is an apocalyptic number.

90246591 is a deficient number, since it is larger than the sum of its proper divisors (47777841).

90246591 is a wasteful number, since it uses less digits than its factorization.

90246591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589870 (or 589867 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 90246591 is about 9499.8205772530. The cubic root of 90246591 is about 448.5493881176.

The spelling of 90246591 in words is "ninety million, two hundred forty-six thousand, five hundred ninety-one".