6861432 has 64 divisors (see below), whose sum is σ = 18547200. Its totient is φ = 2108160.

The previous prime is 6861431. The next prime is 6861461. The reversal of 6861432 is 2341686.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (6912) is a multiple of the sum of its prime divisors (432).

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 6861432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6861431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18513 + ... + 18879.

It is an arithmetic number, because the mean of its divisors is an integer number (289800).

Almost surely, 2^6861432 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 6861432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9273600).

6861432 is an abundant number, since it is smaller than the sum of its proper divisors (11685768).

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

6861432 is a wasteful number, since it uses less digits than its factorization.

6861432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 432 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 6861432 is about 2619.4335265473. The cubic root of 6861432 is about 190.0224534868.

The spelling of 6861432 in words is "six million, eight hundred sixty-one thousand, four hundred thirty-two".