90471903 has 16 divisors (see below), whose sum is σ = 126792960. Its totient is φ = 57271104.

The previous prime is 90471881. The next prime is 90471911. The reversal of 90471903 is 30917409.

It is not a de Polignac number, because 90471903 - 2⁹ = 90471391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90471973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4875 + ... + 14307.

It is an arithmetic number, because the mean of its divisors is an integer number (7924560).

Almost surely, 2^90471903 is an apocalyptic number.

90471903 is a deficient number, since it is larger than the sum of its proper divisors (36321057).

90471903 is a wasteful number, since it uses less digits than its factorization.

90471903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9598.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 90471903 is about 9511.6719350491. The cubic root of 90471903 is about 448.9223646076.

The spelling of 90471903 in words is "ninety million, four hundred seventy-one thousand, nine hundred three".