866471454 has 48 divisors (see below), whose sum is σ = 1978797600. Its totient is φ = 273594048.

The previous prime is 866471449. The next prime is 866471471. The reversal of 866471454 is 454174668.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12007 + ... + 43325.

It is an arithmetic number, because the mean of its divisors is an integer number (41224950).

Almost surely, 2^866471454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866471454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989398800).

866471454 is an abundant number, since it is smaller than the sum of its proper divisors (1112326146).

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

866471454 is a wasteful number, since it uses less digits than its factorization.

866471454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31409 (or 31406 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 866471454 is about 29435.8871787483. The cubic root of 866471454 is about 953.3479121716.

The spelling of 866471454 in words is "eight hundred sixty-six million, four hundred seventy-one thousand, four hundred fifty-four".