90563918 has 8 divisors (see below), whose sum is σ = 142995720. Its totient is φ = 42898680.

The previous prime is 90563881. The next prime is 90563929. The reversal of 90563918 is 81936509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191593 + ... + 1191668.

It is an arithmetic number, because the mean of its divisors is an integer number (17874465).

Almost surely, 2^90563918 is an apocalyptic number.

90563918 is a deficient number, since it is larger than the sum of its proper divisors (52431802).

90563918 is a wasteful number, since it uses less digits than its factorization.

90563918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383282.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 90563918 is about 9516.5076577492. The cubic root of 90563918 is about 449.0745061155.

The spelling of 90563918 in words is "ninety million, five hundred sixty-three thousand, nine hundred eighteen".