999628034597 has 2 divisors, whose sum is σ = 999628034598. Its totient is φ = 999628034596.

The previous prime is 999628034563. The next prime is 999628034611. The reversal of 999628034597 is 795430826999.

It is a Cunningham number, because it is equal to 999814²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 999628034596 + 1 = 999814^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 999628034597 - 2³² = 995333067301 is a prime.

It is a super-2 number, since 2×999628034597² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 999628034597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999628034297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499814017298 + 499814017299.

It is an arithmetic number, because the mean of its divisors is an integer number (499814017299).

Almost surely, 2^999628034597 is an apocalyptic number.

It is an amenable number.

999628034597 is a deficient number, since it is larger than the sum of its proper divisors (1).

999628034597 is an equidigital number, since it uses as much as digits as its factorization.

999628034597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264539520, while the sum is 71.

The spelling of 999628034597 in words is "nine hundred ninety-nine billion, six hundred twenty-eight million, thirty-four thousand, five hundred ninety-seven".