2819967 has 4 divisors (see below), whose sum is σ = 3759960. Its totient is φ = 1879976.

The previous prime is 2819959. The next prime is 2819981. The reversal of 2819967 is 7699182.

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 2819967 - 2³ = 2819959 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819987) 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, 469992 + ... + 469997.

It is an arithmetic number, because the mean of its divisors is an integer number (939990).

2^2819967 is an apocalyptic number.

2819967 is a deficient number, since it is larger than the sum of its proper divisors (939993).

2819967 is an equidigital number, since it uses as much as digits as its factorization.

2819967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939992.

The product of its digits is 54432, while the sum is 42.

The square root of 2819967 is about 1679.2757367389. The cubic root of 2819967 is about 141.2802133401.

The spelling of 2819967 in words is "two million, eight hundred nineteen thousand, nine hundred sixty-seven".