866026634 has 16 divisors (see below), whose sum is σ = 1417663296. Its totient is φ = 393501600.

The previous prime is 866026627. The next prime is 866026639. The reversal of 866026634 is 436620668.

It is a junction number, because it is equal to n+sod(n) for n = 866026591 and 866026600.

It is not an unprimeable number, because it can be changed into a prime (866026639) 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, 72014 + ... + 83174.

It is an arithmetic number, because the mean of its divisors is an integer number (88603956).

Almost surely, 2^866026634 is an apocalyptic number.

866026634 is a deficient number, since it is larger than the sum of its proper divisors (551636662).

866026634 is a wasteful number, since it uses less digits than its factorization.

866026634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14701.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 866026634 is about 29428.3304657264. The cubic root of 866026634 is about 953.1847443392.

The spelling of 866026634 in words is "eight hundred sixty-six million, twenty-six thousand, six hundred thirty-four".