2785397 has 8 divisors (see below), whose sum is σ = 2898336. Its totient is φ = 2674512.

The previous prime is 2785379. The next prime is 2785423. The reversal of 2785397 is 7935872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2785397 - 2⁶ = 2785333 is a prime.

It is a super-4 number, since 4×2785397⁴ (a number of 27 digits) contains 4444 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 7 + 8³ + 5⁹ + 3² + 9 + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618 + ... + 3524.

It is an arithmetic number, because the mean of its divisors is an integer number (362292).

2^2785397 is an apocalyptic number.

It is an amenable number.

2785397 is a deficient number, since it is larger than the sum of its proper divisors (112939).

2785397 is an equidigital number, since it uses as much as digits as its factorization.

2785397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027.

The product of its digits is 105840, while the sum is 41.

The square root of 2785397 is about 1668.9508680605. The cubic root of 2785397 is about 140.7005195683.

The spelling of 2785397 in words is "two million, seven hundred eighty-five thousand, three hundred ninety-seven".