999962479 has 2 divisors, whose sum is σ = 999962480. Its totient is φ = 999962478.

The previous prime is 999962477. The next prime is 999962497. The reversal of 999962479 is 974269999.

Together with next prime (999962497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (974269999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999962479 - 2¹ = 999962477 is a prime.

Together with 999962477, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 999962479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999962473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499981239 + 499981240.

It is an arithmetic number, because the mean of its divisors is an integer number (499981240).

Almost surely, 2^999962479 is an apocalyptic number.

999962479 is a deficient number, since it is larger than the sum of its proper divisors (1).

999962479 is an equidigital number, since it uses as much as digits as its factorization.

999962479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19840464, while the sum is 64.

The square root of 999962479 is about 31622.1833370183. The cubic root of 999962479 is about 999.9874928436.

The spelling of 999962479 in words is "nine hundred ninety-nine million, nine hundred sixty-two thousand, four hundred seventy-nine".