999954313 has 2 divisors, whose sum is σ = 999954314. Its totient is φ = 999954312.

The previous prime is 999954311. The next prime is 999954317. The reversal of 999954313 is 313459999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529368064 + 470586249 = 23008^2 + 21693^2 .

It is a cyclic number.

It is not a de Polignac number, because 999954313 - 2¹ = 999954311 is a prime.

It is a super-3 number, since 3×999954313³ (a number of 28 digits) contains 333 as substring.

Together with 999954311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (999954311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499977156 + 499977157.

It is an arithmetic number, because the mean of its divisors is an integer number (499977157).

Almost surely, 2^999954313 is an apocalyptic number.

It is an amenable number.

999954313 is a deficient number, since it is larger than the sum of its proper divisors (1).

999954313 is an equidigital number, since it uses as much as digits as its factorization.

999954313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 52.

The square root of 999954313 is about 31622.0542185355. The cubic root of 999954313 is about 999.9847707681.

The spelling of 999954313 in words is "nine hundred ninety-nine million, nine hundred fifty-four thousand, three hundred thirteen".