1655286979 has 2 divisors, whose sum is σ = 1655286980. Its totient is φ = 1655286978.

The previous prime is 1655286961. The next prime is 1655287001. The reversal of 1655286979 is 9796825561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1655286979 - 2⁵ = 1655286947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1655286779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827643489 + 827643490.

It is an arithmetic number, because the mean of its divisors is an integer number (827643490).

Almost surely, 2^1655286979 is an apocalyptic number.

1655286979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655286979 is an equidigital number, since it uses as much as digits as its factorization.

1655286979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 58.

The square root of 1655286979 is about 40685.2181879365. The cubic root of 1655286979 is about 1182.9265143290.

The spelling of 1655286979 in words is "one billion, six hundred fifty-five million, two hundred eighty-six thousand, nine hundred seventy-nine".