789042493 has 2 divisors, whose sum is σ = 789042494. Its totient is φ = 789042492.

The previous prime is 789042433. The next prime is 789042511. The reversal of 789042493 is 394240987.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 562780729 + 226261764 = 23723^2 + 15042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-789042493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (789042433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394521246 + 394521247.

It is an arithmetic number, because the mean of its divisors is an integer number (394521247).

Almost surely, 2^789042493 is an apocalyptic number.

It is an amenable number.

789042493 is a deficient number, since it is larger than the sum of its proper divisors (1).

789042493 is an equidigital number, since it uses as much as digits as its factorization.

789042493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 789042493 is about 28089.9001956219. The cubic root of 789042493 is about 924.0599138608.

The spelling of 789042493 in words is "seven hundred eighty-nine million, forty-two thousand, four hundred ninety-three".