90280867 has 2 divisors, whose sum is σ = 90280868. Its totient is φ = 90280866.

The previous prime is 90280859. The next prime is 90280873. The reversal of 90280867 is 76808209.

It is a strong prime.

It is an emirp because it is prime and its reverse (76808209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90280867 - 2³ = 90280859 is a prime.

It is not a weakly prime, because it can be changed into another prime (90280847) 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 as a sum of consecutive naturals, namely, 45140433 + 45140434.

It is an arithmetic number, because the mean of its divisors is an integer number (45140434).

Almost surely, 2^90280867 is an apocalyptic number.

90280867 is a deficient number, since it is larger than the sum of its proper divisors (1).

90280867 is an equidigital number, since it uses as much as digits as its factorization.

90280867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 90280867 is about 9501.6244400629. The cubic root of 90280867 is about 448.6061678535.

The spelling of 90280867 in words is "ninety million, two hundred eighty thousand, eight hundred sixty-seven".