90669305 has 8 divisors (see below), whose sum is σ = 108898944. Its totient is φ = 72471600.

The previous prime is 90669301. The next prime is 90669317. The reversal of 90669305 is 50396609.

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

It is not a de Polignac number, because 90669305 - 2² = 90669301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90669301) 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, 1211 + ... + 13520.

It is an arithmetic number, because the mean of its divisors is an integer number (13612368).

Almost surely, 2^90669305 is an apocalyptic number.

It is an amenable number.

90669305 is a deficient number, since it is larger than the sum of its proper divisors (18229639).

90669305 is a wasteful number, since it uses less digits than its factorization.

90669305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15967.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 90669305 is about 9522.0431105934. The cubic root of 90669305 is about 449.2486309041.

The spelling of 90669305 in words is "ninety million, six hundred sixty-nine thousand, three hundred five".