423300649 has 2 divisors, whose sum is σ = 423300650. Its totient is φ = 423300648.

The previous prime is 423300623. The next prime is 423300673. The reversal of 423300649 is 946003324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344659225 + 78641424 = 18565^2 + 8868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423300649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423300649.

It is not a weakly prime, because it can be changed into another prime (423300679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211650324 + 211650325.

It is an arithmetic number, because the mean of its divisors is an integer number (211650325).

Almost surely, 2^423300649 is an apocalyptic number.

It is an amenable number.

423300649 is a deficient number, since it is larger than the sum of its proper divisors (1).

423300649 is an equidigital number, since it uses as much as digits as its factorization.

423300649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 423300649 is about 20574.2715302389. The cubic root of 423300649 is about 750.8438791715.

The spelling of 423300649 in words is "four hundred twenty-three million, three hundred thousand, six hundred forty-nine".