99982019 has 4 divisors (see below), whose sum is σ = 102109344. Its totient is φ = 97854696.

The previous prime is 99982013. The next prime is 99982033. The reversal of 99982019 is 91028999.

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 99982019 - 2¹² = 99977923 is a prime.

It is a super-2 number, since 2×99982019² = 19992808246632722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 2127277 = 99982019 / (9 + 9 + 9 + 8 + 2 + 0 + 1 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99982013) 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, 1063592 + ... + 1063685.

It is an arithmetic number, because the mean of its divisors is an integer number (25527336).

Almost surely, 2^99982019 is an apocalyptic number.

99982019 is a deficient number, since it is larger than the sum of its proper divisors (2127325).

99982019 is a wasteful number, since it uses less digits than its factorization.

99982019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127324.

The product of its (nonzero) digits is 104976, while the sum is 47.

The square root of 99982019 is about 9999.1009095818. The cubic root of 99982019 is about 464.1310615574.

The spelling of 99982019 in words is "ninety-nine million, nine hundred eighty-two thousand, nineteen".