90889078 has 16 divisors (see below), whose sum is σ = 156422304. Its totient is φ = 38799360.

The previous prime is 90889063. The next prime is 90889079. The reversal of 90889078 is 87098809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90889079) 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, 9033 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (9776394).

Almost surely, 2^90889078 is an apocalyptic number.

90889078 is a deficient number, since it is larger than the sum of its proper divisors (65533226).

90889078 is a wasteful number, since it uses less digits than its factorization.

90889078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25527.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 90889078 is about 9533.5763488840. The cubic root of 90889078 is about 449.6113154017.

The spelling of 90889078 in words is "ninety million, eight hundred eighty-nine thousand, seventy-eight".