855019 has 8 divisors (see below), whose sum is σ = 982080. Its totient is φ = 736200.

The previous prime is 854999. The next prime is 855031. The reversal of 855019 is 910558.

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 855019 - 2¹⁹ = 330731 is a prime.

It is a super-2 number, since 2×855019² = 1462114980722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855059) 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, 1837 + ... + 2254.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

2⁸⁵⁵⁰¹⁹ is an apocalyptic number.

855019 is a deficient number, since it is larger than the sum of its proper divisors (127061).

855019 is a wasteful number, since it uses less digits than its factorization.

855019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 855019 is about 924.6723744116. The cubic root of 855019 is about 94.9129026284.

The spelling of 855019 in words is "eight hundred fifty-five thousand, nineteen".