90691446 has 16 divisors (see below), whose sum is σ = 190929600. Its totient is φ = 28639368.

The previous prime is 90691373. The next prime is 90691453. The reversal of 90691446 is 64419609.

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, 397656 + ... + 397883.

It is an arithmetic number, because the mean of its divisors is an integer number (11933100).

Almost surely, 2^90691446 is an apocalyptic number.

90691446 is an abundant number, since it is smaller than the sum of its proper divisors (100238154).

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

90691446 is a wasteful number, since it uses less digits than its factorization.

90691446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795563.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 90691446 is about 9523.2056577604. The cubic root of 90691446 is about 449.2851960327.

The spelling of 90691446 in words is "ninety million, six hundred ninety-one thousand, four hundred forty-six".