2399967 has 6 divisors (see below), whose sum is σ = 3466632. Its totient is φ = 1599972.

The previous prime is 2399951. The next prime is 2399977. The reversal of 2399967 is 7699932.

2399967 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 2399967 - 2⁴ = 2399951 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 3¹¹ + 9² + 9² + 9² + 6⁵ + 7⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133323 + ... + 133340.

It is an arithmetic number, because the mean of its divisors is an integer number (577772).

2^2399967 is an apocalyptic number.

2399967 is a deficient number, since it is larger than the sum of its proper divisors (1066665).

2399967 is a wasteful number, since it uses less digits than its factorization.

2399967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266669 (or 266666 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 2399967 is about 1549.1826877422. The cubic root of 2399967 is about 133.8859763668.

The spelling of 2399967 in words is "two million, three hundred ninety-nine thousand, nine hundred sixty-seven".