866677368 has 64 divisors (see below), whose sum is σ = 2239695360. Its totient is φ = 279309056.

The previous prime is 866677327. The next prime is 866677379. The reversal of 866677368 is 863776668.

It is a happy number.

866677368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×866677368² = 1502259320406814848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88996 + ... + 98252.

It is an arithmetic number, because the mean of its divisors is an integer number (34995240).

Almost surely, 2^866677368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866677368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119847680).

866677368 is an abundant number, since it is smaller than the sum of its proper divisors (1373017992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866677368 is a wasteful number, since it uses less digits than its factorization.

866677368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396 (or 9392 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 57.

The square root of 866677368 is about 29439.3846403080. The cubic root of 866677368 is about 953.4234261551.

The spelling of 866677368 in words is "eight hundred sixty-six million, six hundred seventy-seven thousand, three hundred sixty-eight".