866888734 has 4 divisors (see below), whose sum is σ = 1300333104. Its totient is φ = 433444366.

The previous prime is 866888719. The next prime is 866888741. The reversal of 866888734 is 437888668.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×866888734² = 1502992154272245512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216722182 + ... + 216722185.

It is an arithmetic number, because the mean of its divisors is an integer number (325083276).

Almost surely, 2^866888734 is an apocalyptic number.

866888734 is a deficient number, since it is larger than the sum of its proper divisors (433444370).

866888734 is a wasteful number, since it uses less digits than its factorization.

866888734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433444369.

The product of its digits is 12386304, while the sum is 58.

The square root of 866888734 is about 29442.9742723116. The cubic root of 866888734 is about 953.5009270888.

The spelling of 866888734 in words is "eight hundred sixty-six million, eight hundred eighty-eight thousand, seven hundred thirty-four".