4477949897 has 2 divisors, whose sum is σ = 4477949898. Its totient is φ = 4477949896.

The previous prime is 4477949869. The next prime is 4477949899. The reversal of 4477949897 is 7989497744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4449423616 + 28526281 = 66704^2 + 5341^2 .

It is a cyclic number.

It is not a de Polignac number, because 4477949897 - 2¹⁶ = 4477884361 is a prime.

Together with 4477949899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4477949899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2238974948 + 2238974949.

It is an arithmetic number, because the mean of its divisors is an integer number (2238974949).

Almost surely, 2^4477949897 is an apocalyptic number.

It is an amenable number.

4477949897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4477949897 is an equidigital number, since it uses as much as digits as its factorization.

4477949897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128024064, while the sum is 68.

The square root of 4477949897 is about 66917.4857342982. The cubic root of 4477949897 is about 1648.2626214567.

The spelling of 4477949897 in words is "four billion, four hundred seventy-seven million, nine hundred forty-nine thousand, eight hundred ninety-seven".