90955806 has 16 divisors (see below), whose sum is σ = 182039184. Its totient is φ = 30297344.

The previous prime is 90955801. The next prime is 90955841. The reversal of 90955806 is 60855909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90955801) 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, 5716 + ... + 14648.

It is an arithmetic number, because the mean of its divisors is an integer number (11377449).

Almost surely, 2^90955806 is an apocalyptic number.

90955806 is an abundant number, since it is smaller than the sum of its proper divisors (91083378).

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

90955806 is a wasteful number, since it uses less digits than its factorization.

90955806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 90955806 is about 9537.0753378591. The cubic root of 90955806 is about 449.7213188087.

The spelling of 90955806 in words is "ninety million, nine hundred fifty-five thousand, eight hundred six".