423565349 has 2 divisors, whose sum is σ = 423565350. Its totient is φ = 423565348.

The previous prime is 423565321. The next prime is 423565379. The reversal of 423565349 is 943565324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392317249 + 31248100 = 19807^2 + 5590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423565349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423565379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211782674 + 211782675.

It is an arithmetic number, because the mean of its divisors is an integer number (211782675).

Almost surely, 2^423565349 is an apocalyptic number.

It is an amenable number.

423565349 is a deficient number, since it is larger than the sum of its proper divisors (1).

423565349 is an equidigital number, since it uses as much as digits as its factorization.

423565349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 41.

The square root of 423565349 is about 20580.7033164564. The cubic root of 423565349 is about 751.0003534271. Note that the first 3 decimals are identical.

The spelling of 423565349 in words is "four hundred twenty-three million, five hundred sixty-five thousand, three hundred forty-nine".