2439967 has 4 divisors (see below), whose sum is σ = 2463760. Its totient is φ = 2416176.

The previous prime is 2439953. The next prime is 2439977. The reversal of 2439967 is 7699342.

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 2439967 - 2⁷ = 2439839 is a prime.

It is a super-2 number, since 2×2439967² = 11906877922178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11742 + ... + 11947.

It is an arithmetic number, because the mean of its divisors is an integer number (615940).

2^2439967 is an apocalyptic number.

2439967 is a deficient number, since it is larger than the sum of its proper divisors (23793).

2439967 is a wasteful number, since it uses less digits than its factorization.

2439967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23792.

The product of its digits is 81648, while the sum is 40.

The square root of 2439967 is about 1562.0393721030. The cubic root of 2439967 is about 134.6257030207.

The spelling of 2439967 in words is "two million, four hundred thirty-nine thousand, nine hundred sixty-seven".