1005498979 has 2 divisors, whose sum is σ = 1005498980. Its totient is φ = 1005498978.

The previous prime is 1005498961. The next prime is 1005499003. The reversal of 1005498979 is 9798945001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1005498979 - 2¹¹ = 1005496931 is a prime.

It is a super-2 number, since 2×1005498979² = 2022056393540084882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1005498959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502749489 + 502749490.

It is an arithmetic number, because the mean of its divisors is an integer number (502749490).

Almost surely, 2^1005498979 is an apocalyptic number.

1005498979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005498979 is an equidigital number, since it uses as much as digits as its factorization.

1005498979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 1005498979 is about 31709.6038921964. The cubic root of 1005498979 is about 1001.8296433635.

The spelling of 1005498979 in words is "one billion, five million, four hundred ninety-eight thousand, nine hundred seventy-nine".