6979355623 has 2 divisors, whose sum is σ = 6979355624. Its totient is φ = 6979355622.

The previous prime is 6979355599. The next prime is 6979355651. The reversal of 6979355623 is 3265539796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6979355623 - 2²¹ = 6977258471 is a prime.

It is a super-4 number, since 4×6979355623⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6979355923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489677811 + 3489677812.

It is an arithmetic number, because the mean of its divisors is an integer number (3489677812).

Almost surely, 2^6979355623 is an apocalyptic number.

6979355623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6979355623 is an equidigital number, since it uses as much as digits as its factorization.

6979355623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9185400, while the sum is 55.

The square root of 6979355623 is about 83542.5378055994. The cubic root of 6979355623 is about 1911.0487942602.

The spelling of 6979355623 in words is "six billion, nine hundred seventy-nine million, three hundred fifty-five thousand, six hundred twenty-three".