864117234 has 112 divisors (see below), whose sum is σ = 2039800320. Its totient is φ = 274065120.

The previous prime is 864117197. The next prime is 864117253. The reversal of 864117234 is 432711468.

864117234 is a `hidden beast` number, since 8 + 6 + 411 + 7 + 234 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4524079 + ... + 4524269.

Almost surely, 2^864117234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864117234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1019900160).

864117234 is an abundant number, since it is smaller than the sum of its proper divisors (1175683086).

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

864117234 is a wasteful number, since it uses less digits than its factorization.

864117234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 332 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 864117234 is about 29395.8710365929. The cubic root of 864117234 is about 952.4837073287.

The spelling of 864117234 in words is "eight hundred sixty-four million, one hundred seventeen thousand, two hundred thirty-four".