85667290 has 8 divisors (see below), whose sum is σ = 154201140. Its totient is φ = 34266912.

The previous prime is 85667287. The next prime is 85667299. The reversal of 85667290 is 9276658.

It can be written as a sum of positive squares in 2 ways, for example, as 84989961 + 677329 = 9219^2 + 823^2 .

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 (85667299) 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, 4283355 + ... + 4283374.

Almost surely, 2^85667290 is an apocalyptic number.

85667290 is a deficient number, since it is larger than the sum of its proper divisors (68533850).

85667290 is a wasteful number, since it uses less digits than its factorization.

85667290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566736.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 85667290 is about 9255.6625910844. The cubic root of 85667290 is about 440.8305421672.

The spelling of 85667290 in words is "eighty-five million, six hundred sixty-seven thousand, two hundred ninety".