85940771 has 4 divisors (see below), whose sum is σ = 98218032. Its totient is φ = 73663512.

The previous prime is 85940749. The next prime is 85940801. The reversal of 85940771 is 17704958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17704958 = 2 ⋅8852479.

It is a cyclic number.

It is not a de Polignac number, because 85940771 - 2⁶ = 85940707 is a prime.

It is a super-2 number, since 2×85940771² = 14771632240148882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85940731) 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, 6138620 + ... + 6138633.

It is an arithmetic number, because the mean of its divisors is an integer number (24554508).

Almost surely, 2^85940771 is an apocalyptic number.

85940771 is a deficient number, since it is larger than the sum of its proper divisors (12277261).

85940771 is a wasteful number, since it uses less digits than its factorization.

85940771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12277260.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 85940771 is about 9270.4245318108. The cubic root of 85940771 is about 441.2991407632.

The spelling of 85940771 in words is "eighty-five million, nine hundred forty thousand, seven hundred seventy-one".