99973057 has 2 divisors, whose sum is σ = 99973058. Its totient is φ = 99973056.

The previous prime is 99973037. The next prime is 99973061. The reversal of 99973057 is 75037999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95238081 + 4734976 = 9759^2 + 2176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99973057 is a prime.

It is a super-2 number, since 2×99973057² = 19989224251850498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99973057.

It is not a weakly prime, because it can be changed into another prime (99973037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49986528 + 49986529.

It is an arithmetic number, because the mean of its divisors is an integer number (49986529).

Almost surely, 2^99973057 is an apocalyptic number.

It is an amenable number.

99973057 is a deficient number, since it is larger than the sum of its proper divisors (1).

99973057 is an equidigital number, since it uses as much as digits as its factorization.

99973057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 535815, while the sum is 49.

The square root of 99973057 is about 9998.6527592471. The cubic root of 99973057 is about 464.1171935076.

The spelling of 99973057 in words is "ninety-nine million, nine hundred seventy-three thousand, fifty-seven".