866428546 has 8 divisors (see below), whose sum is σ = 1300714380. Its totient is φ = 432857088.

The previous prime is 866428429. The next prime is 866428559. The reversal of 866428546 is 645824668.

It can be written as a sum of positive squares in 2 ways, for example, as 849081321 + 17347225 = 29139^2 + 4165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 866428546.

It is an unprimeable number.

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, 175551 + ... + 180418.

Almost surely, 2^866428546 is an apocalyptic number.

866428546 is a deficient number, since it is larger than the sum of its proper divisors (434285834).

866428546 is a wasteful number, since it uses less digits than its factorization.

866428546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357188.

The product of its digits is 2211840, while the sum is 49.

The square root of 866428546 is about 29435.1583314920. The cubic root of 866428546 is about 953.3321751933.

The spelling of 866428546 in words is "eight hundred sixty-six million, four hundred twenty-eight thousand, five hundred forty-six".