742579 has 2 divisors, whose sum is σ = 742580. Its totient is φ = 742578.

The previous prime is 742559. The next prime is 742591. The reversal of 742579 is 975247.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742579 is a prime.

It is not a weakly prime, because it can be changed into another prime (742519) 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, 371289 + 371290.

It is an arithmetic number, because the mean of its divisors is an integer number (371290).

742579 is a Friedman number, since it can be written as 7+((9+4)^5-7)*2, using all its digits and the basic arithmetic operations.

2⁷⁴²⁵⁷⁹ is an apocalyptic number.

742579 is a deficient number, since it is larger than the sum of its proper divisors (1).

742579 is an equidigital number, since it uses as much as digits as its factorization.

742579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 34.

The square root of 742579 is about 861.7302362108. The cubic root of 742579 is about 90.5553724401. Note that the first 3 decimals are identical.

The spelling of 742579 in words is "seven hundred forty-two thousand, five hundred seventy-nine".