6861402 has 32 divisors (see below), whose sum is σ = 15504960. Its totient is φ = 2248560.

The previous prime is 6861401. The next prime is 6861409. The reversal of 6861402 is 2041686.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6861401) 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, 2253 + ... + 4335.

It is an arithmetic number, because the mean of its divisors is an integer number (484530).

Almost surely, 2^6861402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6861402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7752480).

6861402 is an abundant number, since it is smaller than the sum of its proper divisors (8643558).

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

6861402 is a wasteful number, since it uses less digits than its factorization.

6861402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 6861402 is about 2619.4278001121. The cubic root of 6861402 is about 190.0221765435.

The spelling of 6861402 in words is "six million, eight hundred sixty-one thousand, four hundred two".