2808220077 has 16 divisors (see below), whose sum is σ = 4480351680. Its totient is φ = 1728135216.

The previous prime is 2808220073. The next prime is 2808220081. The reversal of 2808220077 is 7700228082.

It is an interprime number because it is at equal distance from previous prime (2808220073) and next prime (2808220081).

It is not a de Polignac number, because 2808220077 - 2² = 2808220073 is a prime.

It is a super-2 number, since 2×2808220077² = 15772200001731771858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808220073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3999963 + ... + 4000664.

It is an arithmetic number, because the mean of its divisors is an integer number (280021980).

Almost surely, 2^2808220077 is an apocalyptic number.

2808220077 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2808220077 is a deficient number, since it is larger than the sum of its proper divisors (1672131603).

2808220077 is a wasteful number, since it uses less digits than its factorization.

2808220077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000649 (or 8000643 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 2808220077 is about 52992.6417250546. The cubic root of 2808220077 is about 1410.8376688408.

The spelling of 2808220077 in words is "two billion, eight hundred eight million, two hundred twenty thousand, seventy-seven".