2670385 has 4 divisors (see below), whose sum is σ = 3204468. Its totient is φ = 2136304.

The previous prime is 2670373. The next prime is 2670439. The reversal of 2670385 is 5830762.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1343281 + 1327104 = 1159^2 + 1152^2 .

It is a cyclic number.

It is not a de Polignac number, because 2670385 - 2⁹ = 2669873 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹⁸ + 6⁸ + 7⁵ + 0 + 3¹⁰ + 8⁶ + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267034 + ... + 267043.

It is an arithmetic number, because the mean of its divisors is an integer number (801117).

2^2670385 is an apocalyptic number.

It is an amenable number.

2670385 is a deficient number, since it is larger than the sum of its proper divisors (534083).

2670385 is an equidigital number, since it uses as much as digits as its factorization.

2670385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534082.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2670385 is about 1634.1312676771. The cubic root of 2670385 is about 138.7366786442.

The spelling of 2670385 in words is "two million, six hundred seventy thousand, three hundred eighty-five".