90106494 has 16 divisors (see below), whose sum is σ = 190813968. Its totient is φ = 28268672.

The previous prime is 90106469. The next prime is 90106517. The reversal of 90106494 is 49460109.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441597 + ... + 441800.

It is an arithmetic number, because the mean of its divisors is an integer number (11925873).

Almost surely, 2^90106494 is an apocalyptic number.

90106494 is an abundant number, since it is smaller than the sum of its proper divisors (100707474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90106494 is a wasteful number, since it uses less digits than its factorization.

90106494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883419.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 90106494 is about 9492.4440477677. Note that the first 3 decimals coincide. The cubic root of 90106494 is about 448.3171615467.

The spelling of 90106494 in words is "ninety million, one hundred six thousand, four hundred ninety-four".