85490943 has 16 divisors (see below), whose sum is σ = 120889440. Its totient is φ = 53554176.

The previous prime is 85490929. The next prime is 85490959. The reversal of 85490943 is 34909458.

It is not a de Polignac number, because 85490943 - 2⁶ = 85490879 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 85490895 and 85490904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85490983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46893 + ... + 48681.

It is an arithmetic number, because the mean of its divisors is an integer number (7555590).

Almost surely, 2^85490943 is an apocalyptic number.

85490943 is a deficient number, since it is larger than the sum of its proper divisors (35398497).

85490943 is a wasteful number, since it uses less digits than its factorization.

85490943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 85490943 is about 9246.1312450127. The cubic root of 85490943 is about 440.5278496343.

The spelling of 85490943 in words is "eighty-five million, four hundred ninety thousand, nine hundred forty-three".