85671361 has 4 divisors (see below), whose sum is σ = 90180400. Its totient is φ = 81162324.

The previous prime is 85671353. The next prime is 85671371. The reversal of 85671361 is 16317658.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85671361 - 2³ = 85671353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85671361.

It is not an unprimeable number, because it can be changed into a prime (85671301) 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, 2254491 + ... + 2254528.

It is an arithmetic number, because the mean of its divisors is an integer number (22545100).

Almost surely, 2^85671361 is an apocalyptic number.

It is an amenable number.

85671361 is a deficient number, since it is larger than the sum of its proper divisors (4509039).

85671361 is a wasteful number, since it uses less digits than its factorization.

85671361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509038.

The product of its digits is 30240, while the sum is 37.

The square root of 85671361 is about 9255.8825078973. The cubic root of 85671361 is about 440.8375249674.

The spelling of 85671361 in words is "eighty-five million, six hundred seventy-one thousand, three hundred sixty-one".