490197623 has 2 divisors, whose sum is σ = 490197624. Its totient is φ = 490197622.

The previous prime is 490197619. The next prime is 490197649. The reversal of 490197623 is 326791094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490197623 - 2² = 490197619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490197683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245098811 + 245098812.

It is an arithmetic number, because the mean of its divisors is an integer number (245098812).

Almost surely, 2^490197623 is an apocalyptic number.

490197623 is a deficient number, since it is larger than the sum of its proper divisors (1).

490197623 is an equidigital number, since it uses as much as digits as its factorization.

490197623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 490197623 is about 22140.4070197456. The cubic root of 490197623 is about 788.4794889627.

The spelling of 490197623 in words is "four hundred ninety million, one hundred ninety-seven thousand, six hundred twenty-three".