90247666 has 8 divisors (see below), whose sum is σ = 135462384. Its totient is φ = 45093540.

The previous prime is 90247631. The next prime is 90247667. The reversal of 90247666 is 66674209.

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

It is not an unprimeable number, because it can be changed into a prime (90247667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11220 + ... + 17503.

It is an arithmetic number, because the mean of its divisors is an integer number (16932798).

Almost surely, 2^90247666 is an apocalyptic number.

90247666 is a deficient number, since it is larger than the sum of its proper divisors (45214718).

90247666 is a wasteful number, since it uses less digits than its factorization.

90247666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30296.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 90247666 is about 9499.8771571005. The cubic root of 90247666 is about 448.5511691218.

The spelling of 90247666 in words is "ninety million, two hundred forty-seven thousand, six hundred sixty-six".