861254316 has 96 divisors (see below), whose sum is σ = 2410956800. Its totient is φ = 264306240.

The previous prime is 861254311. The next prime is 861254333. The reversal of 861254316 is 613452168.

It is a happy number.

861254316 is a `hidden beast` number, since 8 + 612 + 5 + 4 + 31 + 6 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (861254311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 868581 + ... + 869571.

Almost surely, 2^861254316 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 861254316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205478400).

861254316 is an abundant number, since it is smaller than the sum of its proper divisors (1549702484).

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

861254316 is a wasteful number, since it uses less digits than its factorization.

861254316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636 (or 1628 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 861254316 is about 29347.1347153346. The cubic root of 861254316 is about 951.4306481340.

The spelling of 861254316 in words is "eight hundred sixty-one million, two hundred fifty-four thousand, three hundred sixteen".