866454029 has 4 divisors (see below), whose sum is σ = 990233184. Its totient is φ = 742674876.

The previous prime is 866453993. The next prime is 866454037. The reversal of 866454029 is 920454668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-866454029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866454529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61889567 + ... + 61889580.

It is an arithmetic number, because the mean of its divisors is an integer number (247558296).

Almost surely, 2^866454029 is an apocalyptic number.

It is an amenable number.

866454029 is a deficient number, since it is larger than the sum of its proper divisors (123779155).

866454029 is a wasteful number, since it uses less digits than its factorization.

866454029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123779154.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 866454029 is about 29435.5911950142. The cubic root of 866454029 is about 953.3415214249.

The spelling of 866454029 in words is "eight hundred sixty-six million, four hundred fifty-four thousand, twenty-nine".