999703081 has 16 divisors (see below), whose sum is σ = 1084471360. Its totient is φ = 916090560.

The previous prime is 999703079. The next prime is 999703157. The reversal of 999703081 is 180307999.

It is a cyclic number.

It is not a de Polignac number, because 999703081 - 2¹ = 999703079 is a prime.

It is a super-2 number, since 2×999703081² = 1998812500321785122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999703381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1630531 + ... + 1631143.

It is an arithmetic number, because the mean of its divisors is an integer number (67779460).

Almost surely, 2^999703081 is an apocalyptic number.

It is an amenable number.

999703081 is a deficient number, since it is larger than the sum of its proper divisors (84768279).

999703081 is a wasteful number, since it uses less digits than its factorization.

999703081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 999703081 is about 31618.0815515426. The cubic root of 999703081 is about 999.9010172027.

The spelling of 999703081 in words is "nine hundred ninety-nine million, seven hundred three thousand, eighty-one".