999973357 has 2 divisors, whose sum is σ = 999973358. Its totient is φ = 999973356.

The previous prime is 999973343. The next prime is 999973399. The reversal of 999973357 is 753379999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 788823396 + 211149961 = 28086^2 + 14531^2 .

It is a cyclic number.

It is not a de Polignac number, because 999973357 - 2⁷ = 999973229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999973295 and 999973304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999973307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499986678 + 499986679.

It is an arithmetic number, because the mean of its divisors is an integer number (499986679).

Almost surely, 2^999973357 is an apocalyptic number.

It is an amenable number.

999973357 is a deficient number, since it is larger than the sum of its proper divisors (1).

999973357 is an equidigital number, since it uses as much as digits as its factorization.

999973357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14467005, while the sum is 61.

The square root of 999973357 is about 31622.3553360593. The cubic root of 999973357 is about 999.9911189211.

The spelling of 999973357 in words is "nine hundred ninety-nine million, nine hundred seventy-three thousand, three hundred fifty-seven".