90648567 has 6 divisors (see below), whose sum is σ = 130936832. Its totient is φ = 60432372.

The previous prime is 90648559. The next prime is 90648583. The reversal of 90648567 is 76584609.

It is not a de Polignac number, because 90648567 - 2³ = 90648559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90648587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5036023 + ... + 5036040.

Almost surely, 2^90648567 is an apocalyptic number.

90648567 is a deficient number, since it is larger than the sum of its proper divisors (40288265).

90648567 is a wasteful number, since it uses less digits than its factorization.

90648567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10072069 (or 10072066 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 90648567 is about 9520.9541013493. The cubic root of 90648567 is about 449.2143773843.

The spelling of 90648567 in words is "ninety million, six hundred forty-eight thousand, five hundred sixty-seven".