90921103 has 8 divisors (see below), whose sum is σ = 111903008. Its totient is φ = 71937504.

The previous prime is 90921101. The next prime is 90921121. The reversal of 90921103 is 30112909.

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 90921103 - 2¹ = 90921101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90921101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499476 + ... + 499657.

It is an arithmetic number, because the mean of its divisors is an integer number (13987876).

Almost surely, 2^90921103 is an apocalyptic number.

90921103 is a deficient number, since it is larger than the sum of its proper divisors (20981905).

90921103 is a wasteful number, since it uses less digits than its factorization.

90921103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999153.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 90921103 is about 9535.2557910105. The cubic root of 90921103 is about 449.6641164344.

The spelling of 90921103 in words is "ninety million, nine hundred twenty-one thousand, one hundred three".