2021296077 has 12 divisors (see below), whose sum is σ = 2926158300. Its totient is φ = 1344526848.

The previous prime is 2021296063. The next prime is 2021296091. The reversal of 2021296077 is 7706921202.

2021296077 is a `hidden beast` number, since 2 + 0 + 21 + 29 + 607 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (2021296063) and next prime (2021296091).

It can be written as a sum of positive squares in 2 ways, for example, as 868421961 + 1152874116 = 29469^2 + 33954^2 .

It is not a de Polignac number, because 2021296077 - 2²⁰ = 2020247501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021296477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246058 + ... + 254139.

It is an arithmetic number, because the mean of its divisors is an integer number (243846525).

Almost surely, 2^2021296077 is an apocalyptic number.

It is an amenable number.

2021296077 is a deficient number, since it is larger than the sum of its proper divisors (904862223).

2021296077 is a wasteful number, since it uses less digits than its factorization.

2021296077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500652 (or 500649 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2021296077 is about 44958.8264637768. The cubic root of 2021296077 is about 1264.3771667694.

The spelling of 2021296077 in words is "two billion, twenty-one million, two hundred ninety-six thousand, seventy-seven".