85394091 has 4 divisors (see below), whose sum is σ = 113858792. Its totient is φ = 56929392.

The previous prime is 85394081. The next prime is 85394131. The reversal of 85394091 is 19049358.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85394091 - 2¹⁴ = 85377707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85394041) 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, 14232346 + ... + 14232351.

It is an arithmetic number, because the mean of its divisors is an integer number (28464698).

Almost surely, 2^85394091 is an apocalyptic number.

85394091 is a deficient number, since it is larger than the sum of its proper divisors (28464701).

85394091 is a wasteful number, since it uses less digits than its factorization.

85394091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28464700.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 85394091 is about 9240.8923270429. The cubic root of 85394091 is about 440.3614299571.

The spelling of 85394091 in words is "eighty-five million, three hundred ninety-four thousand, ninety-one".