42984899 has 4 divisors (see below), whose sum is σ = 43313160. Its totient is φ = 42656640.

The previous prime is 42984869. The next prime is 42984911. The reversal of 42984899 is 99848924.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42984899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42984899.

It is not an unprimeable number, because it can be changed into a prime (42984829) 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, 163934 + ... + 164195.

It is an arithmetic number, because the mean of its divisors is an integer number (10828290).

Almost surely, 2^42984899 is an apocalyptic number.

42984899 is a deficient number, since it is larger than the sum of its proper divisors (328261).

42984899 is a wasteful number, since it uses less digits than its factorization.

42984899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328260.

The product of its digits is 1492992, while the sum is 53.

The square root of 42984899 is about 6556.2869827365. The cubic root of 42984899 is about 350.2987897530.

The spelling of 42984899 in words is "forty-two million, nine hundred eighty-four thousand, eight hundred ninety-nine".