806890 has 16 divisors (see below), whose sum is σ = 1660032. Its totient is φ = 276624.

The previous prime is 806857. The next prime is 806893. The reversal of 806890 is 98608.

806890 = T₂₇₄ + T₂₇₅ + ... + T₂₉₃.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806893) 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, 5694 + ... + 5833.

It is an arithmetic number, because the mean of its divisors is an integer number (103752).

2⁸⁰⁶⁸⁹⁰ is an apocalyptic number.

806890 is an abundant number, since it is smaller than the sum of its proper divisors (853142).

It is a weird number, because it is abundant, but not a pseudoperfect number.

806890 is a wasteful number, since it uses less digits than its factorization.

806890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11541.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 806890 is about 898.2705605774. The cubic root of 806890 is about 93.0975197808.

The spelling of 806890 in words is "eight hundred six thousand, eight hundred ninety".