998932481 has 16 divisors (see below), whose sum is σ = 1071100800. Its totient is φ = 929499648.

The previous prime is 998932471. The next prime is 998932489. The reversal of 998932481 is 184239899.

It is a cyclic number.

It is not a de Polignac number, because 998932481 - 2¹⁰ = 998931457 is a prime.

It is a super-2 number, since 2×998932481² = 1995732203193630722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (998932489) 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, 127835 + ... + 135423.

It is an arithmetic number, because the mean of its divisors is an integer number (66943800).

It is a Proth number, since it is equal to 30485 ⋅ 2¹⁵ + 1 and 30485 < 2¹⁵.

Almost surely, 2^998932481 is an apocalyptic number.

It is an amenable number.

998932481 is a deficient number, since it is larger than the sum of its proper divisors (72168319).

998932481 is a wasteful number, since it uses less digits than its factorization.

998932481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768.

The product of its digits is 1119744, while the sum is 53.

The square root of 998932481 is about 31605.8931371983. The cubic root of 998932481 is about 999.6440336363.

The spelling of 998932481 in words is "nine hundred ninety-eight million, nine hundred thirty-two thousand, four hundred eighty-one".