2077906 has 4 divisors (see below), whose sum is σ = 3116862. Its totient is φ = 1038952.

The previous prime is 2077891. The next prime is 2077909. The reversal of 2077906 is 6097702.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1461681 + 616225 = 1209^2 + 785^2 .

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 not an unprimeable number, because it can be changed into a prime (2077909) 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 as a sum of consecutive naturals, namely, 519475 + ... + 519478.

2^2077906 is an apocalyptic number.

2077906 is a deficient number, since it is larger than the sum of its proper divisors (1038956).

2077906 is a wasteful number, since it uses less digits than its factorization.

2077906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038955.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 2077906 is about 1441.4943634992. The cubic root of 2077906 is about 127.6072351712.

The spelling of 2077906 in words is "two million, seventy-seven thousand, nine hundred six".