85177775 has 6 divisors (see below), whose sum is σ = 105620472. Its totient is φ = 68142200.

The previous prime is 85177759. The next prime is 85177789. The reversal of 85177775 is 57777158.

It is not a de Polignac number, because 85177775 - 2⁴ = 85177759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1703531 + ... + 1703580.

It is an arithmetic number, because the mean of its divisors is an integer number (17603412).

Almost surely, 2^85177775 is an apocalyptic number.

85177775 is a deficient number, since it is larger than the sum of its proper divisors (20442697).

85177775 is a wasteful number, since it uses less digits than its factorization.

85177775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407121 (or 3407116 counting only the distinct ones).

The product of its digits is 480200, while the sum is 47.

The square root of 85177775 is about 9229.1806245192. The cubic root of 85177775 is about 439.9892817637.

The spelling of 85177775 in words is "eighty-five million, one hundred seventy-seven thousand, seven hundred seventy-five".