85463890 has 8 divisors (see below), whose sum is σ = 153835020. Its totient is φ = 34185552.

The previous prime is 85463863. The next prime is 85463891. The reversal of 85463890 is 9836458.

It can be written as a sum of positive squares in 2 ways, for example, as 84437721 + 1026169 = 9189^2 + 1013^2 .

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 (85463891) 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, 4273185 + ... + 4273204.

Almost surely, 2^85463890 is an apocalyptic number.

85463890 is a deficient number, since it is larger than the sum of its proper divisors (68371130).

85463890 is a wasteful number, since it uses less digits than its factorization.

85463890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8546396.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 85463890 is about 9244.6681930722. The cubic root of 85463890 is about 440.4813774319.

The spelling of 85463890 in words is "eighty-five million, four hundred sixty-three thousand, eight hundred ninety".