623041801 has 2 divisors, whose sum is σ = 623041802. Its totient is φ = 623041800.

The previous prime is 623041799. The next prime is 623041817. The reversal of 623041801 is 108140326.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 621205776 + 1836025 = 24924^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 623041801 - 2¹ = 623041799 is a prime.

Together with 623041799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (623041841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311520900 + 311520901.

It is an arithmetic number, because the mean of its divisors is an integer number (311520901).

Almost surely, 2^623041801 is an apocalyptic number.

It is an amenable number.

623041801 is a deficient number, since it is larger than the sum of its proper divisors (1).

623041801 is an equidigital number, since it uses as much as digits as its factorization.

623041801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 623041801 is about 24960.8052955028. The cubic root of 623041801 is about 854.0941129802.

The spelling of 623041801 in words is "six hundred twenty-three million, forty-one thousand, eight hundred one".