10199977 has 2 divisors, whose sum is σ = 10199978. Its totient is φ = 10199976.

The previous prime is 10199963. The next prime is 10199999. The reversal of 10199977 is 77999101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7901721 + 2298256 = 2811^2 + 1516^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10199977 is a prime.

It is equal to p₆₇₆₉₆₉ and since 10199977 and 676969 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (10199177) 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, 5099988 + 5099989.

It is an arithmetic number, because the mean of its divisors is an integer number (5099989).

Almost surely, 2^10199977 is an apocalyptic number.

It is an amenable number.

10199977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10199977 is an equidigital number, since it uses as much as digits as its factorization.

10199977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35721, while the sum is 43.

The square root of 10199977 is about 3193.7402837426. The cubic root of 10199977 is about 216.8701255178.

The spelling of 10199977 in words is "ten million, one hundred ninety-nine thousand, nine hundred seventy-seven".