90064705 has 8 divisors (see below), whose sum is σ = 108794304. Its totient is φ = 71574000.

The previous prime is 90064687. The next prime is 90064721. The reversal of 90064705 is 50746009.

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

It is not a de Polignac number, because 90064705 - 2⁵ = 90064673 is a prime.

It is a super-2 number, since 2×90064705² = 16223302173474050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 58891 + ... + 60400.

It is an arithmetic number, because the mean of its divisors is an integer number (13599288).

Almost surely, 2^90064705 is an apocalyptic number.

It is an amenable number.

90064705 is a deficient number, since it is larger than the sum of its proper divisors (18729599).

90064705 is a wasteful number, since it uses less digits than its factorization.

90064705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119447.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 90064705 is about 9490.2426207131. The cubic root of 90064705 is about 448.2478449636.

The spelling of 90064705 in words is "ninety million, sixty-four thousand, seven hundred five".