861054760 has 64 divisors (see below), whose sum is σ = 2117560320. Its totient is φ = 313697280.

The previous prime is 861054757. The next prime is 861054763. The reversal of 861054760 is 67450168.

It is an interprime number because it is at equal distance from previous prime (861054757) and next prime (861054763).

It is not an unprimeable number, because it can be changed into a prime (861054763) 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, 657 + ... + 41503.

It is an arithmetic number, because the mean of its divisors is an integer number (33086880).

Almost surely, 2^861054760 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 861054760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058780160).

861054760 is an abundant number, since it is smaller than the sum of its proper divisors (1256505560).

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

861054760 is a wasteful number, since it uses less digits than its factorization.

861054760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40906 (or 40902 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 861054760 is about 29343.7345953101. The cubic root of 861054760 is about 951.3571590546.

The spelling of 861054760 in words is "eight hundred sixty-one million, fifty-four thousand, seven hundred sixty".