85277381 has 8 divisors (see below), whose sum is σ = 98044800. Its totient is φ = 72656208.

The previous prime is 85277369. The next prime is 85277443. The reversal of 85277381 is 18377258.

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 85277381 - 2¹⁴ = 85260997 is a prime.

It is a super-2 number, since 2×85277381² = 14544463420438322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85277281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35306 + ... + 37643.

It is an arithmetic number, because the mean of its divisors is an integer number (12255600).

Almost surely, 2^85277381 is an apocalyptic number.

It is an amenable number.

85277381 is a deficient number, since it is larger than the sum of its proper divisors (12767419).

85277381 is a wasteful number, since it uses less digits than its factorization.

85277381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73123.

The product of its digits is 94080, while the sum is 41.

The square root of 85277381 is about 9234.5753015501. The cubic root of 85277381 is about 440.1607212440.

It can be divided in two parts, 85277 and 381, that added together give a palindrome (85658).

The spelling of 85277381 in words is "eighty-five million, two hundred seventy-seven thousand, three hundred eighty-one".