2028379447 has 4 divisors (see below), whose sum is σ = 2135136280. Its totient is φ = 1921622616.

The previous prime is 2028379433. The next prime is 2028379459. The reversal of 2028379447 is 7449738202.

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-2028379447 is a prime.

It is a super-2 number, since 2×2028379447² = 8228646362024051618, 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 = 2028379397 and 2028379406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028379417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53378388 + ... + 53378425.

It is an arithmetic number, because the mean of its divisors is an integer number (533784070).

Almost surely, 2^2028379447 is an apocalyptic number.

2028379447 is a deficient number, since it is larger than the sum of its proper divisors (106756833).

2028379447 is a wasteful number, since it uses less digits than its factorization.

2028379447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106756832.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 2028379447 is about 45037.5337579668. The cubic root of 2028379447 is about 1265.8523934717.

The spelling of 2028379447 in words is "two billion, twenty-eight million, three hundred seventy-nine thousand, four hundred forty-seven".