99547983 has 24 divisors (see below), whose sum is σ = 146554928. Its totient is φ = 65100672.

The previous prime is 99547969. The next prime is 99547993. The reversal of 99547983 is 38974599.

99547983 is a `hidden beast` number, since 9 + 9 + 547 + 98 + 3 = 666.

It is not a de Polignac number, because 99547983 - 2¹⁰ = 99546959 is a prime.

It is a super-3 number, since 3×99547983³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99547963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181716 + ... + 182262.

Almost surely, 2^99547983 is an apocalyptic number.

99547983 is a deficient number, since it is larger than the sum of its proper divisors (47006945).

99547983 is a wasteful number, since it uses less digits than its factorization.

99547983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 900 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 99547983 is about 9977.3735521930. The cubic root of 99547983 is about 463.4584679466.

The spelling of 99547983 in words is "ninety-nine million, five hundred forty-seven thousand, nine hundred eighty-three".