742759 has 2 divisors, whose sum is σ = 742760. Its totient is φ = 742758.

The previous prime is 742757. The next prime is 742783. The reversal of 742759 is 957247.

It is a weak prime.

It is an emirp because it is prime and its reverse (957247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742759 - 2¹ = 742757 is a prime.

Together with 742757, it forms a pair of twin primes.

742759 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371379 + 371380.

It is an arithmetic number, because the mean of its divisors is an integer number (371380).

2⁷⁴²⁷⁵⁹ is an apocalyptic number.

742759 is a deficient number, since it is larger than the sum of its proper divisors (1).

742759 is an equidigital number, since it uses as much as digits as its factorization.

742759 is an evil number, because the sum of its binary digits is even.

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

The square root of 742759 is about 861.8346709201. The cubic root of 742759 is about 90.5626886763.

The spelling of 742759 in words is "seven hundred forty-two thousand, seven hundred fifty-nine".