2670387 has 4 divisors (see below), whose sum is σ = 3560520. Its totient is φ = 1780256.

The previous prime is 2670373. The next prime is 2670439. The reversal of 2670387 is 7830762.

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 2670387 - 2⁸ = 2670131 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2670337) 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, 445062 + ... + 445067.

It is an arithmetic number, because the mean of its divisors is an integer number (890130).

2^2670387 is an apocalyptic number.

2670387 is a deficient number, since it is larger than the sum of its proper divisors (890133).

2670387 is an equidigital number, since it uses as much as digits as its factorization.

2670387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890132.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2670387 is about 1634.1318796229. The cubic root of 2670387 is about 138.7367132801.

The spelling of 2670387 in words is "two million, six hundred seventy thousand, three hundred eighty-seven".