90619666 has 8 divisors (see below), whose sum is σ = 138821760. Its totient is φ = 44345748.

The previous prime is 90619663. The next prime is 90619667. The reversal of 90619666 is 66691609.

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 (90619663) 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, 481926 + ... + 482113.

It is an arithmetic number, because the mean of its divisors is an integer number (17352720).

Almost surely, 2^90619666 is an apocalyptic number.

90619666 is a deficient number, since it is larger than the sum of its proper divisors (48202094).

90619666 is a wasteful number, since it uses less digits than its factorization.

90619666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964088.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 90619666 is about 9519.4362228023. The cubic root of 90619666 is about 449.1666321004.

The spelling of 90619666 in words is "ninety million, six hundred nineteen thousand, six hundred sixty-six".