90066877 has 2 divisors, whose sum is σ = 90066878. Its totient is φ = 90066876.

The previous prime is 90066841. The next prime is 90066881. The reversal of 90066877 is 77866009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80892036 + 9174841 = 8994^2 + 3029^2 .

It is a cyclic number.

It is not a de Polignac number, because 90066877 - 2¹¹ = 90064829 is a prime.

It is a super-2 number, since 2×90066877² = 16224084665066258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90066577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45033438 + 45033439.

It is an arithmetic number, because the mean of its divisors is an integer number (45033439).

Almost surely, 2^90066877 is an apocalyptic number.

It is an amenable number.

90066877 is a deficient number, since it is larger than the sum of its proper divisors (1).

90066877 is an equidigital number, since it uses as much as digits as its factorization.

90066877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 90066877 is about 9490.3570533463. The cubic root of 90066877 is about 448.2514482489.

The spelling of 90066877 in words is "ninety million, sixty-six thousand, eight hundred seventy-seven".