866901312 has 112 divisors (see below), whose sum is σ = 2562352000. Its totient is φ = 287400960.

The previous prime is 866901311. The next prime is 866901313. The reversal of 866901312 is 213109668.

It is an interprime number because it is at equal distance from previous prime (866901311) and next prime (866901313).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866901311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342612 + ... + 345132.

Almost surely, 2^866901312 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 866901312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281176000).

866901312 is an abundant number, since it is smaller than the sum of its proper divisors (1695450688).

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

866901312 is a wasteful number, since it uses less digits than its factorization.

866901312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2725 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 866901312 is about 29443.1878708811. The cubic root of 866901312 is about 953.5055386290.

The spelling of 866901312 in words is "eight hundred sixty-six million, nine hundred one thousand, three hundred twelve".