855064 has 16 divisors (see below), whose sum is σ = 1832400. Its totient is φ = 366432.

The previous prime is 855061. The next prime is 855067. The reversal of 855064 is 460558.

It is an interprime number because it is at equal distance from previous prime (855061) and next prime (855067).

It is a super-2 number, since 2×855064² = 1462268888192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7579 + ... + 7690.

It is an arithmetic number, because the mean of its divisors is an integer number (114525).

2⁸⁵⁵⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

855064 is an abundant number, since it is smaller than the sum of its proper divisors (977336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855064 is a wasteful number, since it uses less digits than its factorization.

855064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15282 (or 15278 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 855064 is about 924.6967070343. The cubic root of 855064 is about 94.9145677008.

The spelling of 855064 in words is "eight hundred fifty-five thousand, sixty-four".