423389737 has 2 divisors, whose sum is σ = 423389738. Its totient is φ = 423389736.

The previous prime is 423389663. The next prime is 423389741. The reversal of 423389737 is 737983324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416608921 + 6780816 = 20411^2 + 2604^2 .

It is a cyclic number.

It is not a de Polignac number, because 423389737 - 2²³ = 415001129 is a prime.

It is not a weakly prime, because it can be changed into another prime (423309737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211694868 + 211694869.

It is an arithmetic number, because the mean of its divisors is an integer number (211694869).

Almost surely, 2^423389737 is an apocalyptic number.

It is an amenable number.

423389737 is a deficient number, since it is larger than the sum of its proper divisors (1).

423389737 is an equidigital number, since it uses as much as digits as its factorization.

423389737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 46.

The square root of 423389737 is about 20576.4364504644. The cubic root of 423389737 is about 750.8965497636.

The spelling of 423389737 in words is "four hundred twenty-three million, three hundred eighty-nine thousand, seven hundred thirty-seven".