90950905 has 8 divisors (see below), whose sum is σ = 109210752. Its totient is φ = 72714288.

The previous prime is 90950887. The next prime is 90950911. The reversal of 90950905 is 50905909.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 90950905 - 2⁹ = 90950393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4464 + ... + 14206.

It is an arithmetic number, because the mean of its divisors is an integer number (13651344).

Almost surely, 2^90950905 is an apocalyptic number.

It is an amenable number.

90950905 is a deficient number, since it is larger than the sum of its proper divisors (18259847).

90950905 is a wasteful number, since it uses less digits than its factorization.

90950905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11615.

The product of its (nonzero) digits is 18225, while the sum is 37.

The square root of 90950905 is about 9536.8183897986. The cubic root of 90950905 is about 449.7132411724.

The spelling of 90950905 in words is "ninety million, nine hundred fifty thousand, nine hundred five".