861488 has 20 divisors (see below), whose sum is σ = 1742448. Its totient is φ = 411840.

The previous prime is 861439. The next prime is 861491. The reversal of 861488 is 884168.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803 + ... + 1538.

2⁸⁶¹⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

861488 is an abundant number, since it is smaller than the sum of its proper divisors (880960).

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

861488 is a wasteful number, since it uses less digits than its factorization.

861488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372 (or 2366 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 861488 is about 928.1637786512. The cubic root of 861488 is about 95.1516690863.

The spelling of 861488 in words is "eight hundred sixty-one thousand, four hundred eighty-eight".