99309043 has 4 divisors (see below), whose sum is σ = 99396328. Its totient is φ = 99221760.

The previous prime is 99309017. The next prime is 99309061. The reversal of 99309043 is 34090399.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99309043 - 2¹⁷ = 99177971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99308993 and 99309011.

It is not an unprimeable number, because it can be changed into a prime (99309943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41913 + ... + 44218.

It is an arithmetic number, because the mean of its divisors is an integer number (24849082).

Almost surely, 2^99309043 is an apocalyptic number.

99309043 is a deficient number, since it is larger than the sum of its proper divisors (87285).

99309043 is a wasteful number, since it uses less digits than its factorization.

99309043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87284.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 99309043 is about 9965.3922652347. The cubic root of 99309043 is about 463.0873655511.

The spelling of 99309043 in words is "ninety-nine million, three hundred nine thousand, forty-three".