6840061 has 2 divisors, whose sum is σ = 6840062. Its totient is φ = 6840060.

The previous prime is 6840049. The next prime is 6840073. The reversal of 6840061 is 1600486.

It is a balanced prime because it is at equal distance from previous prime (6840049) and next prime (6840073).

It can be written as a sum of positive squares in only one way, i.e., 6502500 + 337561 = 2550^2 + 581^2 .

It is a cyclic number.

It is not a de Polignac number, because 6840061 - 2²¹ = 4742909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6840091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3420030 + 3420031.

It is an arithmetic number, because the mean of its divisors is an integer number (3420031).

Almost surely, 2^6840061 is an apocalyptic number.

It is an amenable number.

6840061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6840061 is an equidigital number, since it uses as much as digits as its factorization.

6840061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 6840061 is about 2615.3510280649. The cubic root of 6840061 is about 189.8249634517.

The spelling of 6840061 in words is "six million, eight hundred forty thousand, sixty-one".