85345187 has 4 divisors (see below), whose sum is σ = 85373760. Its totient is φ = 85316616.

The previous prime is 85345177. The next prime is 85345193. The reversal of 85345187 is 78154358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78154358 = 2 ⋅39077179.

It is a cyclic number.

It is not a de Polignac number, because 85345187 - 2¹⁶ = 85279651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85345177) 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, 9203 + ... + 15980.

It is an arithmetic number, because the mean of its divisors is an integer number (21343440).

Almost surely, 2^85345187 is an apocalyptic number.

85345187 is a deficient number, since it is larger than the sum of its proper divisors (28573).

85345187 is a wasteful number, since it uses less digits than its factorization.

85345187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28572.

The product of its digits is 134400, while the sum is 41.

The square root of 85345187 is about 9238.2458832833. The cubic root of 85345187 is about 440.2773509634.

The spelling of 85345187 in words is "eighty-five million, three hundred forty-five thousand, one hundred eighty-seven".