2078811 has 32 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 1116288.

The previous prime is 2078801. The next prime is 2078827. The reversal of 2078811 is 1188702.

It is not a de Polignac number, because 2078811 - 2⁵ = 2078779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2890 + ... + 3536.

It is an arithmetic number, because the mean of its divisors is an integer number (116640).

2^2078811 is an apocalyptic number.

2078811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2078811 is a deficient number, since it is larger than the sum of its proper divisors (1653669).

2078811 is a wasteful number, since it uses less digits than its factorization.

2078811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2078811 is about 1441.8082396768. The cubic root of 2078811 is about 127.6257582718.

The spelling of 2078811 in words is "two million, seventy-eight thousand, eight hundred eleven".