90066893 has 8 divisors (see below), whose sum is σ = 103510080. Its totient is φ = 76767840.

The previous prime is 90066881. The next prime is 90066913. The reversal of 90066893 is 39866009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90066893 - 2⁴ = 90066877 is a prime.

It is a super-2 number, since 2×90066893² = 16224090429346898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90066893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90066293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34688 + ... + 37193.

It is an arithmetic number, because the mean of its divisors is an integer number (12938760).

Almost surely, 2^90066893 is an apocalyptic number.

It is an amenable number.

90066893 is a deficient number, since it is larger than the sum of its proper divisors (13443187).

90066893 is a wasteful number, since it uses less digits than its factorization.

90066893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72067.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 90066893 is about 9490.3578963072. The cubic root of 90066893 is about 448.2514747923.

The spelling of 90066893 in words is "ninety million, sixty-six thousand, eight hundred ninety-three".