6978061 has 2 divisors, whose sum is σ = 6978062. Its totient is φ = 6978060.

The previous prime is 6978047. The next prime is 6978091. The reversal of 6978061 is 1608796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6734025 + 244036 = 2595^2 + 494^2 .

It is a cyclic number.

It is not a de Polignac number, because 6978061 - 2¹³ = 6969869 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6978061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6978001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489030 + 3489031.

It is an arithmetic number, because the mean of its divisors is an integer number (3489031).

Almost surely, 2^6978061 is an apocalyptic number.

It is an amenable number.

6978061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6978061 is an equidigital number, since it uses as much as digits as its factorization.

6978061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 6978061 is about 2641.6019760744. The cubic root of 6978061 is about 191.0930624769.

The spelling of 6978061 in words is "six million, nine hundred seventy-eight thousand, sixty-one".