424315789 has 2 divisors, whose sum is σ = 424315790. Its totient is φ = 424315788.

The previous prime is 424315769. The next prime is 424315807. The reversal of 424315789 is 987513424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394340164 + 29975625 = 19858^2 + 5475^2 .

It is a cyclic number.

It is not a de Polignac number, because 424315789 - 2²³ = 415927181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424315769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212157894 + 212157895.

It is an arithmetic number, because the mean of its divisors is an integer number (212157895).

Almost surely, 2^424315789 is an apocalyptic number.

It is an amenable number.

424315789 is a deficient number, since it is larger than the sum of its proper divisors (1).

424315789 is an equidigital number, since it uses as much as digits as its factorization.

424315789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 424315789 is about 20598.9268895251. The cubic root of 424315789 is about 751.4436130073.

It can be divided in two parts, 424315 and 789, that added together give a square (425104 = 652²).

The spelling of 424315789 in words is "four hundred twenty-four million, three hundred fifteen thousand, seven hundred eighty-nine".