4077670021 has 2 divisors, whose sum is σ = 4077670022. Its totient is φ = 4077670020.

The previous prime is 4077669979. The next prime is 4077670027. The reversal of 4077670021 is 1200767704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3134320225 + 943349796 = 55985^2 + 30714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4077670021 - 2⁹ = 4077669509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4077670027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2038835010 + 2038835011.

It is an arithmetic number, because the mean of its divisors is an integer number (2038835011).

Almost surely, 2^4077670021 is an apocalyptic number.

It is an amenable number.

4077670021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4077670021 is an equidigital number, since it uses as much as digits as its factorization.

4077670021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 4077670021 is about 63856.6364679506. The cubic root of 4077670021 is about 1597.6097148482.

The spelling of 4077670021 in words is "four billion, seventy-seven million, six hundred seventy thousand, twenty-one".