2077789 has 4 divisors (see below), whose sum is σ = 2374624. Its totient is φ = 1780956.

The previous prime is 2077781. The next prime is 2077807. The reversal of 2077789 is 9877702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2077789 - 2³ = 2077781 is a prime.

2077789 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2077781) 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, 148407 + ... + 148420.

It is an arithmetic number, because the mean of its divisors is an integer number (593656).

2^2077789 is an apocalyptic number.

It is an amenable number.

2077789 is a deficient number, since it is larger than the sum of its proper divisors (296835).

2077789 is an equidigital number, since it uses as much as digits as its factorization.

2077789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296834.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 2077789 is about 1441.4537800429. The cubic root of 2077789 is about 127.6048400794.

The spelling of 2077789 in words is "two million, seventy-seven thousand, seven hundred eighty-nine".