999802403 has 2 divisors, whose sum is σ = 999802404. Its totient is φ = 999802402.

The previous prime is 999802399. The next prime is 999802409. The reversal of 999802403 is 304208999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999802403 - 2² = 999802399 is a prime.

It is equal to p_50837984 and since 999802403 and 50837984 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 (999802409) 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, 499901201 + 499901202.

It is an arithmetic number, because the mean of its divisors is an integer number (499901202).

Almost surely, 2^999802403 is an apocalyptic number.

999802403 is a deficient number, since it is larger than the sum of its proper divisors (1).

999802403 is an equidigital number, since it uses as much as digits as its factorization.

999802403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 999802403 is about 31619.6521644372. The cubic root of 999802403 is about 999.9341299946.

The spelling of 999802403 in words is "nine hundred ninety-nine million, eight hundred two thousand, four hundred three".