999359481 has 8 divisors (see below), whose sum is σ = 1333320064. Its totient is φ = 665819280.

The previous prime is 999359477. The next prime is 999359483. The reversal of 999359481 is 184953999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 999359481 - 2² = 999359477 is a prime.

It is a super-2 number, since 2×999359481² = 1997438744529178722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999359483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99505 + ... + 109086.

It is an arithmetic number, because the mean of its divisors is an integer number (166665008).

Almost surely, 2^999359481 is an apocalyptic number.

It is an amenable number.

999359481 is a deficient number, since it is larger than the sum of its proper divisors (333960583).

999359481 is a wasteful number, since it uses less digits than its factorization.

999359481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210191.

The product of its digits is 3149280, while the sum is 57.

The square root of 999359481 is about 31612.6474848280. The cubic root of 999359481 is about 999.7864480655.

The spelling of 999359481 in words is "nine hundred ninety-nine million, three hundred fifty-nine thousand, four hundred eighty-one".