99630043 has 4 divisors (see below), whose sum is σ = 103961808. Its totient is φ = 95298280.

The previous prime is 99630031. The next prime is 99630061. The reversal of 99630043 is 34003699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34003699 = 103 ⋅330133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99630043 is a prime.

It is a super-2 number, since 2×99630043² = 19852290936363698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99629990 and 99630008.

It is not an unprimeable number, because it can be changed into a prime (99630023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165848 + ... + 2165893.

It is an arithmetic number, because the mean of its divisors is an integer number (25990452).

Almost surely, 2^99630043 is an apocalyptic number.

99630043 is a deficient number, since it is larger than the sum of its proper divisors (4331765).

99630043 is a wasteful number, since it uses less digits than its factorization.

99630043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331764.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 99630043 is about 9981.4850097568. The cubic root of 99630043 is about 463.5857799404.

The spelling of 99630043 in words is "ninety-nine million, six hundred thirty thousand, forty-three".