623738837347 has 2 divisors, whose sum is σ = 623738837348. Its totient is φ = 623738837346.

The previous prime is 623738837311. The next prime is 623738837363. The reversal of 623738837347 is 743738837326.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623738837347 - 2¹⁹ = 623738313059 is a prime.

It is not a weakly prime, because it can be changed into another prime (623738837147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311869418673 + 311869418674.

It is an arithmetic number, because the mean of its divisors is an integer number (311869418674).

Almost surely, 2^623738837347 is an apocalyptic number.

623738837347 is a deficient number, since it is larger than the sum of its proper divisors (1).

623738837347 is an equidigital number, since it uses as much as digits as its factorization.

623738837347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85349376, while the sum is 61.

The spelling of 623738837347 in words is "six hundred twenty-three billion, seven hundred thirty-eight million, eight hundred thirty-seven thousand, three hundred forty-seven".