20070777 has 8 divisors (see below), whose sum is σ = 27138240. Its totient is φ = 13191920.

The previous prime is 20070773. The next prime is 20070779. The reversal of 20070777 is 77707002.

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 20070777 - 2² = 20070773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20070773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46902 + ... + 47327.

It is an arithmetic number, because the mean of its divisors is an integer number (3392280).

Almost surely, 2^20070777 is an apocalyptic number.

It is an amenable number.

20070777 is a deficient number, since it is larger than the sum of its proper divisors (7067463).

20070777 is an equidigital number, since it uses as much as digits as its factorization.

20070777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94303.

The product of its (nonzero) digits is 4802, while the sum is 30.

The square root of 20070777 is about 4480.0420756953. The cubic root of 20070777 is about 271.7615819164.

Adding to 20070777 its reverse (77707002), we get a palindrome (97777779).

The spelling of 20070777 in words is "twenty million, seventy thousand, seven hundred seventy-seven".