90351845 has 16 divisors (see below), whose sum is σ = 110747520. Its totient is φ = 70745664.

The previous prime is 90351841. The next prime is 90351847. The reversal of 90351845 is 54815309.

It is a cyclic number.

It is not a de Polignac number, because 90351845 - 2² = 90351841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90351841) 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 in 15 ways as a sum of consecutive naturals, for example, 57176 + ... + 58734.

It is an arithmetic number, because the mean of its divisors is an integer number (6921720).

Almost surely, 2^90351845 is an apocalyptic number.

It is an amenable number.

90351845 is a deficient number, since it is larger than the sum of its proper divisors (20395675).

90351845 is a wasteful number, since it uses less digits than its factorization.

90351845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 90351845 is about 9505.3587517779. The cubic root of 90351845 is about 448.7237004267.

The spelling of 90351845 in words is "ninety million, three hundred fifty-one thousand, eight hundred forty-five".