90084985 has 8 divisors (see below), whose sum is σ = 113791680. Its totient is φ = 68274864.

The previous prime is 90084971. The next prime is 90085003. The reversal of 90084985 is 58948009.

It is a happy number.

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 90084985 - 2⁷ = 90084857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474037 + ... + 474226.

It is an arithmetic number, because the mean of its divisors is an integer number (14223960).

Almost surely, 2^90084985 is an apocalyptic number.

90084985 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90084985 is a deficient number, since it is larger than the sum of its proper divisors (23706695).

90084985 is a wasteful number, since it uses less digits than its factorization.

90084985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948287.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 90084985 is about 9491.3110264073. The cubic root of 90084985 is about 448.2814866440.

The spelling of 90084985 in words is "ninety million, eighty-four thousand, nine hundred eighty-five".