85872877 has 4 divisors (see below), whose sum is σ = 86419996. Its totient is φ = 85325760.

The previous prime is 85872863. The next prime is 85872887. The reversal of 85872877 is 77827858.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47692836 + 38180041 = 6906^2 + 6179^2 .

It is a cyclic number.

It is not a de Polignac number, because 85872877 - 2⁷ = 85872749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85872827) 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, 273324 + ... + 273637.

It is an arithmetic number, because the mean of its divisors is an integer number (21604999).

Almost surely, 2^85872877 is an apocalyptic number.

It is an amenable number.

85872877 is a deficient number, since it is larger than the sum of its proper divisors (547119).

85872877 is a wasteful number, since it uses less digits than its factorization.

85872877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547118.

The product of its digits is 1756160, while the sum is 52.

The square root of 85872877 is about 9266.7619479514. The cubic root of 85872877 is about 441.1829000199.

The spelling of 85872877 in words is "eighty-five million, eight hundred seventy-two thousand, eight hundred seventy-seven".