84866290 has 8 divisors (see below), whose sum is σ = 152759340. Its totient is φ = 33946512.

The previous prime is 84866281. The next prime is 84866291. The reversal of 84866290 is 9266848.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 80299521 + 4566769 = 8961^2 + 2137^2 .

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 (84866291) 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, 4243305 + ... + 4243324.

Almost surely, 2^84866290 is an apocalyptic number.

84866290 is a deficient number, since it is larger than the sum of its proper divisors (67893050).

84866290 is a wasteful number, since it uses less digits than its factorization.

84866290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486636.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 84866290 is about 9212.2901604324. The cubic root of 84866290 is about 439.4522971639.

The spelling of 84866290 in words is "eighty-four million, eight hundred sixty-six thousand, two hundred ninety".