1656284479 has 2 divisors, whose sum is σ = 1656284480. Its totient is φ = 1656284478.

The previous prime is 1656284477. The next prime is 1656284501. The reversal of 1656284479 is 9744826561.

It is a weak prime.

It is an emirp because it is prime and its reverse (9744826561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1656284479 - 2¹ = 1656284477 is a prime.

Together with 1656284477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1656284477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828142239 + 828142240.

It is an arithmetic number, because the mean of its divisors is an integer number (828142240).

Almost surely, 2^1656284479 is an apocalyptic number.

1656284479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1656284479 is an equidigital number, since it uses as much as digits as its factorization.

1656284479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The square root of 1656284479 is about 40697.4750936714. The cubic root of 1656284479 is about 1183.1640828534.

The spelling of 1656284479 in words is "one billion, six hundred fifty-six million, two hundred eighty-four thousand, four hundred seventy-nine".