866846073 has 16 divisors (see below), whose sum is σ = 1184204736. Its totient is φ = 563727360.

The previous prime is 866846041. The next prime is 866846089. The reversal of 866846073 is 370648668.

It is a happy number.

It is not a de Polignac number, because 866846073 - 2⁵ = 866846041 is a prime.

It is a super-2 number, since 2×866846073² = 1502844228551042658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (866846023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106633 + ... + 114473.

It is an arithmetic number, because the mean of its divisors is an integer number (74012796).

Almost surely, 2^866846073 is an apocalyptic number.

It is an amenable number.

866846073 is a deficient number, since it is larger than the sum of its proper divisors (317358663).

866846073 is a wasteful number, since it uses less digits than its factorization.

866846073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8744.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 866846073 is about 29442.2497951498. The cubic root of 866846073 is about 953.4852857235.

The spelling of 866846073 in words is "eight hundred sixty-six million, eight hundred forty-six thousand, seventy-three".