2179072747 has 2 divisors, whose sum is σ = 2179072748. Its totient is φ = 2179072746.

The previous prime is 2179072717. The next prime is 2179072757. The reversal of 2179072747 is 7472709712.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2179072747 - 2¹⁹ = 2178548459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2179072697 and 2179072706.

It is not a weakly prime, because it can be changed into another prime (2179072717) 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, 1089536373 + 1089536374.

It is an arithmetic number, because the mean of its divisors is an integer number (1089536374).

Almost surely, 2^2179072747 is an apocalyptic number.

2179072747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2179072747 is an equidigital number, since it uses as much as digits as its factorization.

2179072747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345744, while the sum is 46.

The square root of 2179072747 is about 46680.5392749484. The cubic root of 2179072747 is about 1296.4543911913.

The spelling of 2179072747 in words is "two billion, one hundred seventy-nine million, seventy-two thousand, seven hundred forty-seven".