2670999 has 4 divisors (see below), whose sum is σ = 3561336. Its totient is φ = 1780664.

The previous prime is 2670973. The next prime is 2671021. The reversal of 2670999 is 9990762.

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 2670999 - 2¹⁵ = 2638231 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2670999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620999) 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, 445164 + ... + 445169.

It is an arithmetic number, because the mean of its divisors is an integer number (890334).

2^2670999 is an apocalyptic number.

2670999 is a deficient number, since it is larger than the sum of its proper divisors (890337).

2670999 is an equidigital number, since it uses as much as digits as its factorization.

2670999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890336.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 2670999 is about 1634.3191242839. The cubic root of 2670999 is about 138.7473110428.

The spelling of 2670999 in words is "two million, six hundred seventy thousand, nine hundred ninety-nine".