623201297 has 4 divisors (see below), whose sum is σ = 623253540. Its totient is φ = 623149056.

The previous prime is 623201269. The next prime is 623201309. The reversal of 623201297 is 792102326.

It is a happy number.

It is a Cunningham number, because it is equal to 158⁴+1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 350588176 + 272613121 = 18724^2 + 16511^2 .

It is a cyclic number.

It is not a de Polignac number, because 623201297 - 2¹⁰ = 623200273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623201597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529 + ... + 35337.

It is an arithmetic number, because the mean of its divisors is an integer number (155813385).

Almost surely, 2^623201297 is an apocalyptic number.

It is an amenable number.

623201297 is a deficient number, since it is larger than the sum of its proper divisors (52243).

623201297 is a wasteful number, since it uses less digits than its factorization.

623201297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52242.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 623201297 is about 24964.0000200288. Note that the first 4 decimals coincide. The cubic root of 623201297 is about 854.1669882254.

The spelling of 623201297 in words is "six hundred twenty-three million, two hundred one thousand, two hundred ninety-seven".