999068481 has 6 divisors (see below), whose sum is σ = 1443098930. Its totient is φ = 666045648.

The previous prime is 999068471. The next prime is 999068491. The reversal of 999068481 is 184860999.

It is an interprime number because it is at equal distance from previous prime (999068471) and next prime (999068491).

It can be written as a sum of positive squares in only one way, i.e., 983386881 + 15681600 = 31359^2 + 3960^2 .

It is not a de Polignac number, because 999068481 - 2¹³ = 999060289 is a prime.

It is a super-2 number, since 2×999068481² = 1996275659455294722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999068471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55503796 + ... + 55503813.

Almost surely, 2^999068481 is an apocalyptic number.

It is an amenable number.

999068481 is a deficient number, since it is larger than the sum of its proper divisors (444030449).

999068481 is a wasteful number, since it uses less digits than its factorization.

999068481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111007615 (or 111007612 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 999068481 is about 31608.0445614720. The cubic root of 999068481 is about 999.6893972026.

The spelling of 999068481 in words is "nine hundred ninety-nine million, sixty-eight thousand, four hundred eighty-one".