90656445 has 32 divisors (see below), whose sum is σ = 159096960. Its totient is φ = 43715840.

The previous prime is 90656443. The next prime is 90656459. The reversal of 90656445 is 54465609.

It is not a de Polignac number, because 90656445 - 2¹ = 90656443 is a prime.

It is a super-3 number, since 3×90656445³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90656441) 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 31 ways as a sum of consecutive naturals, for example, 31111 + ... + 33899.

It is an arithmetic number, because the mean of its divisors is an integer number (4971780).

Almost surely, 2^90656445 is an apocalyptic number.

It is an amenable number.

90656445 is a deficient number, since it is larger than the sum of its proper divisors (68440515).

90656445 is a wasteful number, since it uses less digits than its factorization.

90656445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 90656445 is about 9521.3678114019. The cubic root of 90656445 is about 449.2273903069.

It can be divided in two parts, 906564 and 45, that added together give a palindrome (906609).

The spelling of 90656445 in words is "ninety million, six hundred fifty-six thousand, four hundred forty-five".