1528979 has 2 divisors, whose sum is σ = 1528980. Its totient is φ = 1528978.

The previous prime is 1528939. The next prime is 1528993. The reversal of 1528979 is 9798251.

It is a strong prime.

It is an emirp because it is prime and its reverse (9798251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1528979 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1528939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 764489 + 764490.

It is an arithmetic number, because the mean of its divisors is an integer number (764490).

2^1528979 is an apocalyptic number.

1528979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1528979 is an equidigital number, since it uses as much as digits as its factorization.

1528979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The square root of 1528979 is about 1236.5189040205. The cubic root of 1528979 is about 115.2038978796.

The spelling of 1528979 in words is "one million, five hundred twenty-eight thousand, nine hundred seventy-nine".