85879861 has 8 divisors (see below), whose sum is σ = 89780544. Its totient is φ = 81993120.

The previous prime is 85879853. The next prime is 85879877. The reversal of 85879861 is 16897858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85879861 - 2³ = 85879853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85879799 and 85879808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85879811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10321 + ... + 16681.

It is an arithmetic number, because the mean of its divisors is an integer number (11222568).

Almost surely, 2^85879861 is an apocalyptic number.

It is an amenable number.

85879861 is a deficient number, since it is larger than the sum of its proper divisors (3900683).

85879861 is a wasteful number, since it uses less digits than its factorization.

85879861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971.

The product of its digits is 967680, while the sum is 52.

The square root of 85879861 is about 9267.1387709476. The cubic root of 85879861 is about 441.1948600938.

The spelling of 85879861 in words is "eighty-five million, eight hundred seventy-nine thousand, eight hundred sixty-one".